Charlie has a break in the shaft of his thigh bone. He broke the diaphysis. The cells that participate in the process of bone deposition are osteoblasts.
These cells are responsible for synthesizing and depositing new bone tissue during bone growth and repair. When bone is injured, such as in the case of Charlie's broken thigh bone, osteoblasts migrate to the site of the injury and begin depositing new bone tissue to help heal the break. Over time, the deposited bone tissue is remodeled and strengthened by other bone cells, such as osteocytes and osteoclasts.
The human skeletal system is composed of bones, which provide support, protection, and movement to the body. Bones are living tissues that are constantly undergoing growth, repair, and remodeling. Bone deposition is a process by which new bone tissue is synthesized and deposited, while bone resorption is the process by which old or damaged bone tissue is removed.
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In a paternity case there is a child with type O blood, and the mother has type A. The first potential Father has type A blood as well and the second potential Father has type B blood. Would blood type be enough to tell us which man is the father? *
Answer:
Blood type information is not enough to tell us which man is the father. We need to know the exact genotype of individuals to know which father gave the child a recessive allele.
Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files
22. Write a couple of sentences explaining the ecological importance of animals that belong in the
class? Malacostraca
Please help me
Answer:
you do not deserve an answer
Explanation:
you are bad
(05. 01 MC)
Recent molecular evidence suggests that the ancestors of the Aboriginal Australians may have arrived on that continent much earlier than originally thought, suggesting that there may have been two waves of human migration out of Africa instead of only one. What is the best next step for scientists considering this alternative explanation? (2 points)
Answer Choices:
Look for fossil evidence that might support this explanation. Determine the amount of popular support for the theory. Convince the scientific community the new explanation is true. Assume the molecular evidence is wrong since it does not fit with what is known
Given the statement, "Recent molecular evidence suggests that the ancestors of the Aboriginal Australians may have arrived on that continent much earlier than originally thought, suggesting that there may have been two waves of human migration out of Africa instead of only one," the best next step for scientists considering this alternative explanation would be to look for fossil evidence that might support this explanation.
An explanation for the same is given below: As per the given statement, the ancestors of the Aboriginal Australians may have arrived on that continent much earlier than originally thought, suggesting that there may have been two waves of human migration out of Africa instead of only one.
Since this is an alternative explanation for what is already known, the best next step for scientists is to look for fossil evidence that might support this explanation. They need to find and analyze fossils of those early humans, which would provide evidence for this alternative theory.
In addition, it would also be essential to test the molecular evidence further and conduct more research to find any possible inconsistencies. This could provide scientists with a more in-depth understanding of how early humans migrated from Africa to different parts of the world. Thus, the best option would be to look for fossil evidence that might support this explanation.
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you cross stickleback fish from a fast-maturing population (strain 1) and a slower-maturing strain (strain 2), and then mate f1 fish with each other to produce a large f2 family. each f2 fish is measured for the number of days to reproductive maturity and scored for dna sequence polymorphisms (markers) scattered across all chromosomes. for 5 genetic markers on chromosome 2, you obtain the data shown in the table below. what do you conclude from these data?
Based on the information provided in the table, we can conclude that Strain I alleles in one or more genes near markers B and C lead to earlier maturity, option B is correct.
This conclusion is based on the fact that markers B and C both have a high LOD score, indicating that they are linked to a quantitative trait locus (QTL) that affects time to maturity. The LOD score is highest for marker C, suggesting that it is closer to the QTL than marker B.
Since the LOD score is higher for strain 1 alleles at both markers, we can conclude that strain 1 alleles lead to earlier maturity in this QTL region. Therefore, the most likely conclusion is that strain 1 alleles in one or more genes near markers B and C lead to earlier maturity, option B is correct.
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The complete question is:
You cross stickleback fish from a fast-maturing population (strain 11 and a slower-maturing strain (strain 2), and then mate F1 fish with each other to produce a large F2 family. Each F2 fish is measured for the number of days to reproductive maturity and scored for DNA sequence polymorphisms (markers) scattered across all chromosomes. For 5 genetic markers on chromosome 2, you obtain the data shown in the table below:
Marker Locus/Strain 1 Homozygote/ Heterozygote/ Strain 2 Homozygote/ LOD score
A: 21/23/22/0.94
B: 20/21/24/3.23
C: 18/23/26/4.29
D: 20/21/22/1.82
E: 22/21/22/0.61
What do you conclude from the data?
A. Markers B and C are in separate genes in which strain 1 alleles lead to earlier maturity
B. Strain I alleles in one or more genes near markers B and C lead to earlier maturity.
C. Markers B and Care in separate genes in which strain 2 alleles lead to earlier maturity.
D. Strain 2 alleles in one or more genes near markers B and C lead to earlier maturity.
E. There is not a QTL affecting time to maturity on chromosome
There are seven types of proteins. Three of them are structural, mechanical, and nutrient. What are the other four
Proteins can be divided into seven different categories: storage, transport, contractile, hormonal, enzyme, and contractile proteins.
Cells use proteins for a variety of purposes. They function as enzymes that catalyse chemical events, offer structural support, control how substances move through the cell membrane, defend the body against disease, and organise cell signalling pathways. All proteins fall into one of seven different categories of proteins. These consist of proteins that are structural, storage, transport, contractile, hormonal, enzyme, and antibody.Organic molecules called proteins are found in all living things. They perform a wide range of tasks, such as transportation, organising, and defence. Proteins have up to four different layers of structure and are made up of chains of amino acids.
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Some people with Turner syndrome are 45,X/46,XY mosaics How could this mosaicism arise?
a. A cell gains an X chromosome soon after fertilization in an XY embryo
b. A cell gains a Y chromosome soon after fertilization in an XX embryo
c. cell loses an X chromosome soon after fertilization in an XY embryo.
d. A cell loses a Y chromosome soon after fertilization in an XY embryo.
e. A cell loses a Y chromosome soon after fertilization in an XX embryo
This mosaicism in Turner’s syndrome arises as a result of some cells losing a Y chromosome soon after fertilization in an XY embryo. (option d)
If the sperm provides a Y chromosome, the zygote shall obtain karyotype 44+XY. A mother shall produce a gamete having X chromosome. This would result in an 44+XY embryo(total 46 chromosomes). This zygote starts dividing cells but if somehow cells of this embryo lose that Y chromosome, the karyotype would become 44+X0(total 45 chromosomes, and condition of Turner’s syndrome). Thus, initially fated to be an XY embryo with 46 chromosomes, some cells now have 45 chromosomes with X0 condition(Turner’s syndrome).
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Describe how a stimulus may lead to the contraction of a smooth muscle cell without a change in the plasma membrane potential.
A stimulus may lead to the contraction of a smooth muscle cell without a change in the plasma membrane potential in a manner which is described below:-
Smooth muscle cells react to chemical messengers, that are extracellular in origin, in a number of ways.
Few of these messengers bring about responses in the plasma membrane which gives rise to secondary messengers, which include chemical messengers like inositol triphosphate (ip3), which are responsible for the release of CA2+ from the sarcoplasmic reticulum.
Therefore, the contraction of a smooth muscle cell can be prevented without a change in the plasma membrane potential.
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how do animals obtain nitrogen for use in synthesizing proteins? multiple choice question. by eating plants or algae via nitrification via denitrification by fixing nitrogen gas (n2) into ammonia (nh3)
Animals obtain nitrogen for use in synthesizing proteins by eating plants or algae.
The main source of nitrogen for animals is food. The protein in the flesh that carnivorous animals consume provides them with the nitrogen they require, whereas plants high in protein or amino acids, such as leguminous plants, provide nitrogen to herbivorous animals. Nitrogen being a part of proteins, biochemicals, and nucleic acids like DNA and RNA plays a crucial role in animal physiology. Animals must consume enough nitrogen to develop healthy muscles, and bodies, and regulate their metabolism and their entire genetic makeup.
However, an overabundance of nitrogenous compounds in the body can result in some illnesses including gout and joint discomfort in individuals.
The complete question is attached as an image.
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A scientist designed an experiment to test the effect of temperature on bacterial growth. He grew three different cultures of the bacterium e. Coli under three heat lamps at different temperatures. What was the independent variable in this experiment?.
A scientist designed an experiment to test the effect of temperature on bacterial growth. The independent variable in this experiment was temperature.
What is the bacterial growth?The outcomes display that microbes have a better increase price at 20, 25 and 30°C and 30°C than at 3°C. In general, an boom in temperature will boom enzyme pastime. But if temperatures get too excessive, enzyme pastime will reduce, and the protein (the enzyme) will denature.
General, the better the temperature, the greater without problems microorganisms can develop as much as a sure point. Very excessive and coffee temperatures each impede the enzyme strategies microorganisms rely on to survive.
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which joints allow the arytenoid cartilages to rock anteriorly,posteriorly, medially, and laterally, enabling the vocal folds to abduct?
The cricoarytenoid joints are the only joints in the larynx that allow the arytenoid cartilages to move anteriorly, posteriorly, medially, and laterally.
These movements enable the vocal folds to abduct, which is the process of separating the vocal folds from each other to produce a wider opening for air to pass through.
The cricoarytenoid joints are the only joints in the larynx that allow for this motion, meaning they are essential in enabling the vocal folds to abduct.
This motion of the arytenoid cartilages is crucial for the production of speech, as the abduction of the vocal folds produces changes in the vocal tract that allow for the production of different sounds. Therefore, the cricoarytenoid joints are essential in allowing us to produce the range of sounds necessary for normal speech.
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11. Most people are born with two kidneys. However, it is possible to live with only one kidney. Doctors
recommend that people with one kidney have their urine tested at least once a year.
Which of the following are doctors most likely trying to determine when testing the urine of a person with only
one kidney?
A. that enough nutrients are dissolving in the blood
B. that enough oxygen is being delivered throughout the body
C. that enough red blood cells are being replaced in the blood
D. that enough nitrogenous waste is being removed from the body
Doctors most likely trying to determine when testing the urine of a person with only one kidney that enough nitrogenous waste is being removed from the body.
Kidney function:
Get rid of trash in the body.Drugs must be removed from the body.The fluids in the body must be balanced.Hormones that control blood pressure are released.Produce an active form of vitamin D that supports strong, healthy bones.Red blood cell generation is within your control.A person with single kidney:
People with only one kidney can live regular lives. After the procedure, the donor can live a normal life as long as he or she has been fully screened and certified for donation. When the donated kidney is removed, the single normal kidney expands to compensate for the loss of the donor kidney.
Hence, option D is correct.
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Warm air and water both tend to rise while cooler air and water sink. When different parts of the oceans are heated unevenly, this causes water to?
a little summary how ultraviolet light could be the answer to the future outbreak
( Two paragraphs).
Ultraviolet light can be the answer to future outbreaks because it has the capability to kill the microorganisms present in air and thus can prevent the infectious diseases caused by them.
Ultraviolet light is the EM radiation with the wavelength range 10 nm to 400 nm. It is already being used in research labs for maintaining the microbe free environment. Researches are also being conducted to produce such ceiling lights that can be used normally in households so that the the air-borne microorganisms can be killed.
Microorganisms are the small living organisms not visible to the unaided eyes. They have the strong capability to produce their new variants by mutation and cause infectious diseases. The ultraviolet light can kill them even before they are able to transform themselves.
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PLZZ HELP ME In three to five sentences, develop an argument for which style of reproduction you think is more beneficial. Be sure to include as much evidence as possible.(4 points)
heres one
I think that sexual reproduction will be more helpful because it helps genetic variation. It involves the most commonly known trait and gene combination genetics. Sexual reproduction allows for more complicated families.
Organisms with the most beneficial traits will survive. This is commonly known as:.
Answer:
Natural selection
Explanation:
One function of liver cells is lipogenesis, the process of converting excess dietary carbohydrates to lipids. What organelle in the liver cell performs this function?
Answer:
The smooth endoplasmic reticulum performs this function.
Explanation:
The smooth endoplasmic reticulum is an organelle made of connected membranes. Its function is to synthesize lipids that the cell needs for different activities. When there is an excess of carbohydrates, this organelle transforms them into lipids to storage them and use them when the body needs them.
As ecological succession progresses forward in time,
A) there is very little effect on the diversity of plant and animal life.
B) the diversity of plant and animal life increases.
C) the diversity of plant and animal life decreases.
D) none of the above
The answer is not A
Answer:
B the diversity of plant and animal life increases.
Explanation:
Succession will always increase biodiversity
Which product in photosynthesis is a waste product for the organisms that produce It? (2 points) OATP Oxygen OGlucose x Carbon dioxide
Answer:
Oxygen
Explanation:
Organisms performing photosynthesis use sunlight and carbon dioxide to produce glucose, which is then turned into sugar. Oxygen is the waste product in the process.
Please help!!!
I’ll give you a Brainiest
The coils of a radiator provide a large surface area from which heat is radiated into a room. Which organelles have a structure similar to that of a radiator? How is their structure related to their function?
*Answer in a paragraph for using 5-7 sentences
Explanation:
The same structure can be found in the cell organelle Mitochondria. These coils are called cristae. These cristae are helpful for increasing the surface area inside the organelle to increase the ATP (Adenosine triphosphate) which is the energy "currency" of the cell.
the surface area of leaves is related to the amount of water a plant loses. which of the leaves most likely comes from a plant that lives in a dry climate?
The leaf with the smallest surface area is most likely to come from a plant that lives in a dry climate. Because the leaf of plants that live in a dry climate will adapt for reduce water loss due to evaporation, so they have reduced leaf size, thick cuticles, and small stomata.
In general , Plants present in the dry climate will have to conserve water, hence they develop smaller leaves for reducing the surface area for water loss . The smaller surface area helps in less exposed area for water to evaporate from the leaf. On the other hand the plants in wet climates results in having the larger sized leaves with a greater surface area because they have more access to water.
Hence, in the given set of leaves, the one with the smallest surface area will come from plant that lives in a dry climate.
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Humans are good at transferring energy from place to place.
Answer:
Yes
Explanation:
Humans are good at it transferring energy from place to place.
(a) Sketch a basic ionization chamber and label its component parts. (6 marks) (b) A 2 ml volume ionization chamber is placed in a radiation field of 2.58 x 10-² C kg¹ s¹). Calculate the current generated in amperes (pair= 0.0013 g cm-³). (c) The energy of 30.0eV is required to ionize a molecule of the gas inside a Geiger tube, thereby producing an ion pair. Suppose a particle of ionizing radiation deposits 0.500 MeV of energy in this Geiger tube. What maximum number of ion pairs can it create? (d) Suppose there are 3 x 107 radon atoms (half life 3.83 days) trapped in a basement. (i) Estimate how many radon atoms remain after 31 days? (ii) Find the activity at the time the basement is sealed?
(i) The current generated in the ionization chamber is approximately 6.708 x \(10^{-5\) A.
(ii) The maximum number of ion pairs that can be created by the particle in the Geiger tube is 1.67 x \(10^5\).
(i) To calculate the current generated in the ionization chamber, we can use the equation:
I = Q/t,
where I is the current, Q is the charge, and t is the time.
Given that the charge generated in the radiation field is 2.58 x \(10^{-2\) C \(kg^{-1} s^{-1\), we need to convert it to charge per unit volume. Since the volume of the ionization chamber is 2 ml (or 2 \(cm^3\)), we multiply the charge rate by the volume:
Q = (2.58 x \(10^{-2} C kg^{-1} s^{-1\)) * (2 \(cm^3\))
= 5.16 x \(10^{-2} C kg^{-1} s^{-1} cm^3\).
Next, we need to convert the charge from \(kg^{-1\) to g \(cm^{-3\), using the given pair value of 0.0013 g \(cm^{-3\):
Q = (5.16 x \(10^{-2\) C \(kg^{-1} s^{-1} cm^3\)) * (0.0013 g \(cm^{-3\))
= 6.708 x \(10^-5\) C \(s^{-1\).
Finally, since 1 A = 1 C \(s^{-1\), the current in amperes is:
I = 6.708 x \(10^{-5\) A.
(ii) To determine the maximum number of ion pairs created, we need to calculate the number of ion pairs generated per unit of energy. The energy required to ionize a molecule is 30.0 eV, which corresponds to 4.80 x \(10^{-19\) J.
The energy deposited by the particle in the Geiger tube is 0.500 MeV or 8.00 x \(10^{-14\) J.
The number of ion pairs created is given by:
N = (Energy deposited) / (Energy per ion pair)
N = (8.00 x \(10^{-14\) J) / (4.80 x \(10^{-19\) J/ion pair)
N = 1.67 x \(10^5\) ion pairs.
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The question is inappropriate; the complete question is:
(i) A 2 ml volume ionization chamber is placed in a radiation field of 2.58 x 10-² C kg¹ s¹). Calculate the current generated in amperes (pair= 0.0013 g cm-³).
(ii) The energy of 30.0eV is required to ionize a molecule of the gas inside a Geiger tube, thereby producing an ion pair. Suppose a particle of ionizing radiation deposits 0.500 MeV of energy in this Geiger tube. What maximum number of ion pairs can it create?
1. Which of the following best describes why splicing is important for the detection of a nonsense mutation?
A. A mRNA that is not spliced cannot be exported from the nucleus.
B. An mRNA that is not spliced will not have exon junction complex proteins associated with it.
C. An mRNA that is not spliced cannot be bound by the ribosome.
The best description for why splicing is important for the detection of a nonsense mutation is option B: An mRNA that is not spliced will not have exon junction complex proteins associated with it.
Splicing is a crucial process in which introns are removed from pre-mRNA, and exons are joined together to form mature mRNA. It plays a significant role in generating functional mRNA molecules that can be translated into proteins. In the context of detecting a nonsense mutation, the presence or absence of splicing can have important implications.
Option A suggests that a mRNA that is not spliced cannot be exported from the nucleus. While splicing is necessary for mRNA export, it is not directly related to the detection of a nonsense mutation.
Option C suggests that an mRNA that is not spliced cannot be bound by the ribosome. Although splicing is important for proper translation, it is not directly relevant to the detection of a nonsense mutation.
Option B correctly describes the importance of splicing for detecting a nonsense mutation. Exon junction complex (EJC) proteins are deposited upstream of exon-exon junctions during splicing. They play a crucial role in mRNA surveillance mechanisms, including nonsense-mediated decay (NMD). NMD is a cellular process that degrades mRNA molecules containing premature stop codons to prevent the synthesis of truncated and potentially harmful proteins.
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1. Label the following parts of the DNA molecule:
A.
B.
C.
D.
E.
2. Answer the following questions:
A. How many molecules make up a nucleotide?
B. What two molecules make up the sides of a DNA
molecule?
C. What type of sugar does DNA contain?
newer questions 3 -
Answer:
1)
A- nitrogenous base
B- hydrogen bond
C- pentose sugar
D- phosphate group
E- nucleotide
2)
A- 3 molecules
B- phosphate group and pentose sugar
C- deoxyribose sugar
Identify the type of RNA that has an attachment point for a specific amino acid.
Answer:
sir animals are diang everyday and this is just wierd
Explanation:
top 10 karen moments
a dna molecule 300 bp long has 20 complete rotations. this dna molecule is
Answer:
The number of complete rotations in a DNA molecule is related to its structure and length. In this case, the DNA molecule is 300 base pairs (bp) long and has 20 complete rotations. Based on this information, we can conclude that this DNA molecule is a supercoiled circular DNA molecule.
Circular DNA molecules can become supercoiled when the strands of the double helix twist around each other. This twisting can result in overwinding or underwinding of the DNA, leading to the formation of supercoils. In the case of this 300 bp long DNA molecule, the 20 complete rotations indicate that it has a high degree of supercoiling.
Therefore, the DNA molecule that is 300 bp long and has 20 complete rotations is a supercoiled circular DNA molecule.
Explanation:
there are three primary energy systems utilized by exercising muscles. For each system, select the duration of exercise the system supports.
1) PCr-ATP Energy system
A) exercise lasting a few seconds
B) exercise lasting 10 to 180 seconds
C) Endurance exercise activities
The correct answer for the duration of exercise supported by the PCr-ATP energy system is (A) exercise lasting a few seconds.
The PCr-ATP (phosphocreatine-adenosine triphosphate) energy system is also known as the immediate or anaerobic alactic energy system. It provides a rapid and immediate source of energy for high-intensity activities that last for only a few seconds, such as a short sprint, a maximal lift, or a quick explosive movement.
During these brief and intense activities, the muscles rapidly break down phosphocreatine (PCr) to produce ATP (adenosine triphosphate), which serves as the primary energy source for muscle contractions.
As the duration of exercise increases beyond a few seconds, the PCr-ATP system becomes less efficient, and other energy systems come into play.
For exercises lasting longer durations, the body relies more on other energy systems like the anaerobic glycolysis system and the aerobic system.
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Which describes why radioisotopes can be used as tracers in studying the biological and chemical processes of plants?.
Radioisotopes can be used as tracers in studying the biochemical plant processes when they are chemically identical to non-radioisotopes that plant uses.
What is a radioisotope?A radioisotope is a chemical substance and/or particle that releases radioactivity in a given period of time.
Radioisotopes are very useful substances to trace a molecular mechanisms or biological structures.
In conclusion, radioisotopes can be used as tracers in studying the biochemical plant processes when they are chemically identical to non-radioisotopes that plant uses.
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Explain the process of protein synthesis be sure to include the following terms ribosome and mRNA TRNA codon and peptide bonds
Protein synthesis, also known as translation, is the process by which cells produce proteins from the genetic information stored in DNA. It involves several key components, including ribosomes, mRNA (messenger RNA), tRNA (transfer RNA), codons, and peptide bonds.
Let's go through the process step by step:
Transcription: In the nucleus of a cell, the DNA sequence encoding a specific protein is transcribed into mRNA. This process involves an enzyme called RNA polymerase that reads the DNA template and synthesizes a complementary mRNA strand.
The mRNA molecule is created using the base pairing rules, where adenine (A) pairs with uracil (U) instead of thymine (T) found in DNA, cytosine (C) pairs with guanine (G), and vice versa.
mRNA Processing: Once the mRNA molecule is synthesized, it undergoes several modifications to prepare it for translation. These modifications include the removal of non-coding regions called introns and the addition of a protective cap (5' cap) at one end and a poly-A tail at the other end. These modifications help stabilize the mRNA molecule and facilitate its export from the nucleus to the cytoplasm, where protein synthesis occurs.
Translation Initiation: The processed mRNA molecule travels from the nucleus to the cytoplasm and attaches to a ribosome, which serves as the site for protein synthesis. The ribosome scans the mRNA until it encounters a specific sequence called the start codon (usually AUG), which signals the beginning of translation. The start codon codes for the amino acid methionine, which initiates the protein synthesis process.
tRNA and Codons: Transfer RNA (tRNA) molecules play a crucial role in protein synthesis. Each tRNA molecule carries a specific amino acid and has an anticodon sequence that is complementary to the codon sequence on the mRNA. Codons are three-nucleotide sequences on the mRNA that specify a particular amino acid. The ribosome reads the mRNA codons in a sequential manner, and each codon recruits a complementary tRNA molecule with the corresponding amino acid.
Elongation: During the elongation phase, the ribosome moves along the mRNA molecule, sequentially matching tRNA anticodons with mRNA codons.
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Why is it impossible for male calico cats to exist
Answer:
genetics
Explanation:
calico cats must also inherit a gene unrelated to the X and Y chromosomes that codes for white fur. Because male cats have one X chromosome with code for black or orange and one Y chromosome with no color genes, they cannot technically be calico. About one in every 3,000 calico cats is born a male, and, unfortunately, don't live as long as female calicos due to their genetic abnormalities. XXY Syndrome renders male calicos sterile and can be the root cause of many other health problems