sickle cell anemia select one: a. is dominant and is lethal if you are a heterozygote b. can be lethal if you are a homozygous for the disease c. provides resistance against tuberculosis if you are a carrier d. causes chromosomes to stick together during crossing over e. none of the above
Answers
Sickle cell anemia can be lethal if you are homozygous for the disease. Option B.
Sickle cell anemiaSickle cell anemia is an autosomal recessive trait that leaves individuals with a group of blood disorders. The red blood cells of sickle cell individuals assume an abnormal shape which makes them die earlier than usual.
The abnormal red blood cells also tend to clog blood vessels leaving individuals with regular pains. The disease can be lethal if adequate attention is not given to sickle cell patients.
Autosomal traits are inheritable via the autosome chromosomes as opposed to x-linked or y-linked traits that are heritable via the x or y chromosomes only.
Recessive traits are traits that cannot be expressed unless the two alleles that make up the traits are recessive. They are different from dominant traits in which only one allele is required to be dominant in order for the trait to be expressed.
Heterozygous individuals, otherwise known as carriers are somewhat recessive to malaria.
Thus, sickle cell anemia can be lethal if you a homozygous for the disease.
More on sickle cell can be found here: https://brainly.com/question/3895081
#SPJ1
Related Questions
Fill in the blank: the absence of telomerase activity may impact ___, in which cells stop dividing, whereas most ____ have active telomerases to maintain telomere length
Answers
The absence of telomerase activity may impact cellular aging, in which cells stop dividing, whereas most cancer cells have active telomerase to maintain telomere length.
Telomeres are protective structures at the ends of chromosomes that shorten with each cell division, ultimately leading to cellular senescence or aging.
Telomerase is an enzyme that can maintain telomere length by adding telomeric repeats to the ends of chromosomes.
In most normal somatic cells, telomerase activity is low or absent, leading to progressive telomere shortening and eventual senescence.
However, in cancer cells, telomerase activity is frequently upregulated, allowing the cells to divide indefinitely and avoiding senescence. Therefore, targeting telomerase has emerged as a promising strategy for cancer therapy.
Overall, the absence of telomerase activity can lead to cellular aging, while active telomerase can maintain telomere length and promote cell division, which is important for cancer cells to proliferate and evade senescence.
For more such answers on telomerase
https://brainly.com/question/13641132
#SPJ11
how are internal and external respiration alike? group of answer choices both involve carbon dioxide diffusing into the body's tissues. both involve carbon dioxide diffusing into the lungs. both involve oxygen diffusing into the lungs. both involve oxygen diffusing into the body's tissues. both involve an exchange of gases.
Answers
Both internal respiration and external respiration involves an exchange of gases.
Internal Respiration- It typically refers to the gas exchange that takes place between both the blood and cells, primarily between oxygen and carbon dioxide. In alveolar tissues during internal breathing, oxygen attaches to the hemoglobin and is delivered to other body tissues.
External Respiration- In the process of external respiration, oxygen diffuses into to the bloodstream and carbon dioxide into the alveolar air in the lungs. In the involved in the metabolism tissues, internal respiration takes place as oxygen diffuses from the blood and the carbon dioxide diffuses from the cells.
The given question format is incorrect, find below the correction question format,
Q. How are internal and external respiration alike?
A. Both involve an exchange of gases.
B. Both involve carbon dioxide diffusing into the lungs.
C. Both involve oxygen diffusing into the lungs.
D. Both involve carbon dioxide diffusing into the body's tissues.
E. Both involve oxygen diffusing into the body's tissues.
To know more about the External Respiration and Internal Respiration, click on the below link,
https://brainly.com/question/12947097
#SPJ1
NO G00GLE PLEASE <3
Define cell
Answers
Answer:
Cell is the fundamental intergral unit of life. It give rise to an organism, it's specialization allows complex or simple functions to occur within a body of an organism.
Describe the type of movement as either facilitated diffusion, osmosis, or diffusion.
Answers
Answer:
1. Diffusion
2. Osmosis
3. Diffusion
4. Facilitated Diffusion
5. Osmosis
6. Diffusion
Explanation:
Facilitated Diffusion- Move molecules across the cell membrane in a passive transportation with membrane protein.
Osmosis- Move water molecules from high concentration to low concentration.
Diffusion- Evenly spread molecules from high concentration to low concentration.
1. Gases move across the room with ease without energy.
2. Water enter skin cells allowing cells to grow and wrinkle without energy.
3. Gases move with ease without energy.
4. Glucose requires energy to transfer.
5. Water leaves throat when concentration outside of throat is less that that inside the trough so water moves outwards.
6. Oxygen is uses passive diffusion does not require energy and will with ease move in and through a cell.
Compare and contrast the roles of follicle-stimulating hormone
and luteinizing hormone in both reproductive systems, including a
general review of all processes regulated by the two hormones, the
effe
Answers
FSH and LH work together to regulate the menstrual cycle in females, control the production of hormones, and support the maturation of eggs and sperm for successful reproduction.
FSH and LH are gonadotropins secreted by the anterior pituitary gland. In females, FSH acts on the ovaries to stimulate the growth and development of ovarian follicles, which contain the eggs. FSH also promotes the production of estrogen by the follicular cells. LH, on the other hand, triggers ovulation, which is the release of a mature egg from the ovary. After ovulation, LH stimulates the transformation of the ruptured follicle into the corpus luteum, which produces progesterone. In males, FSH stimulates the Sertoli cells in the testes, which support the development of sperm cells through spermatogenesis. FSH is necessary for the initiation and maintenance of sperm production.
Learn more about FSH here;
https://brainly.com/question/1440680
#SPJ11
which of the following is not found in the dermis? group of answer choices
a. blood vessels
b. nerves
c. fibroblasts
d. keratinocytes
Answers
Keratinocytes are not found in the dermis.
Keratinocytes are the predominant cells found in the outermost layer of the skin, known as the epidermis.They are responsible for producing keratin, a structural protein that contributes to the strength and integrity of the skin.
On the other hand, the dermis is the layer of skin located beneath the epidermis. It is composed of various components, including blood vessels, nerves, and fibroblasts.
Blood vessels (a) play a crucial role in supplying oxygen and nutrients to the skin and removing waste products. Nerves (b) are responsible for transmitting sensory information, such as touch, pain, and temperature, from the skin to the brain. Fibroblasts (c) are connective tissue cells found in the dermis that produce collagen, elastin, and other extracellular matrix components, providing structural support and flexibility to the skin.
Therefore, the correct answer is d. keratinocytes, as they are not found in the dermis but are a major component of the epidermis.
learn more about Keratinocytes, here
https://brainly.com/question/31932322
#SPJ4
HELP
Describe how the reactants of photosynthesis are the products of cellular
respiration and that the products of photosynthesis are the reactants of cellular
respiration.
Answers
Answer:
Photosynthesis produces: glucose and \(O_{2}\)
...from \(CO_{2}\), energy (light) and \(H_{2} O\)
Respiration produces: energy (ATP),\(CO_{2}, H_{2} O\)
....from glucose and \(O_{2}\)
Explanation:
These end products, namely \(O_{2}\) and glucose are then used in respiration...
Using energy in the form of solar energy, plants, phytoplankton, algae, and other microorganisms produce chemical energy via photosynthesis. This complex mechanism is central to these species.
They combine light energy from the sun, water, and carbon dioxide.
6\(CO_{2}\) + 6\(H_{2} O\) + (energy) →\(C_{6} H_{12} O_{6}\) + 6\(O_{2}\)
In the mechanism of cellular respiration, organisms extract energy from food. Sugars in the form of glucose are broken down into carbon dioxide and water during aerobic respiration in mitochondria to produce energy in the form of ATP (adenosine triphosphate).
\(C_{6} H_{12} O_{6} + 6 O_{2} _{\to \\) \(6CO_{2} + H_{2} O + energy (ATP)\)The waste products, \(CO_{2}\) and \(H_{2} O\), result from respiration, these are used as reactants in the photosynthetic process. In turn, its products are the reactants \(O_{2}\) and \(C_{6} H_{12} O_{6}\) in respiration.
UNIT 6 ACTIVITY 1
Tracking Progress
For this activity, you will create developmental tracking sheets for hypothetical children in your
care. These are sheets that an early childhood educator or caregiver could use to keep an eye
on a child's development if any kind of delay were suspected. You may design your sheets by
using information from the unit, or conduct a bit of additional research. It is worth noting that
many pediatrician's offices track these milestones as well..
In this course, we are focusing on early childhood, but you also learned a bit about school-aged
children, so you will create tracking sheets for the following age groups:
• Infants (up to age one)
• Toddlers (ages two to three)
●
.
For each sheet, you should include as many developmental milestones as you can, when they
are expected to occur, and a place to check off that the child has accomplished the milestone.
Topics you must include for each age group are:
●
Physical development
Approaches to learning
• Social emotional development
Language and communication
Preschoolers (ages three to four)
Early school-aged children (ages five to eight)
●
.
Answers
Early childhood educators must use developmental tracking sheets to keep track of their students' development and spot any areas where they might need extra help.
The physical growth and learning styles of babies up to age one are monitored. Physical, social-emotional, and language development of toddlers between the ages of two and three are tracked. The physical, cognitive, societal/emotional/linguistic, and learning styles of preschoolers between the ages of three and four are monitored.
Children who are five to eight years old and in the early grades have their physical, educational, social-emotional, and language and communication development tracked. By keeping track of these milestones, teachers may modify their instruction to better meet each student's requirements and guarantee that they develop to their maximum potential in all domains.
Learn more about physical growth at:
https://brainly.com/question/31029901
#SPJ1
one of the major problems with the theory of mind-body dualism is identifying and demonstrating how the immaterial mind relates to and acts on the physical body/brain.
t
f
Answers
One of the major problems with the theory of mind-body dualism is identifying and demonstrating how the immaterial mind relates to and acts on the physical body/brain, the given statement is true because the theory of mind-body dualism is based on the idea that the mind and the body are separate entities.
The mind is considered to be an immaterial entity, while the body is a physical entity, the theory suggests that these two entities interact with each other, but the nature of this interaction is not well understood. One of the major problems with the theory of mind-body dualism is identifying and demonstrating how the immaterial mind relates to and acts on the physical body/brain. Some philosophers argue that the mind is able to influence the body through the process of causation. Others suggest that the mind is able to influence the body through the process of interaction or correlation.
It can be concluded that the theory of mind-body dualism is based on the idea that the mind and body are separate entities that interact with each other, but the nature of this interaction is not well understood. One of the major problems with this theory is identifying and demonstrating how the immaterial mind relates to and acts on the physical body/brain. Some philosophers suggest that the mind is able to influence the body through causation while others suggest that it is able to influence through interaction or correlation. So therefore the given statement is true because the theory of mind-body dualism is based on the idea that the mind and the body are separate entities.
Learn more about mind-body dualism at
https://brainly.com/question/32395170
#SPJ11
FILL IN THE BLANK if you are on a glorious picnic and are rudely interrupted by a pestering winged hymenopteran (bee, wasp, or ant) trying to eat your lunch meat, it is almost always a ______ that is bugging you.
Answers
If you are on a glorious picnic and are rudely interrupted by a pestering winged hymenopteran (bee, wasp, or ant) trying to eat your lunch meat, it is almost always a wasp that is bugging you.
When it comes to hymenopteran insects, such as bees, wasps, and ants, it is usually the wasps that show a keen interest in human food, particularly meat and sugary substances. Unlike bees, which are primarily focused on collecting nectar and pollen, wasps are more opportunistic scavengers and predators. They are attracted to the protein in meats and other food items, making them more likely to be bothersome during picnics. Wasps have slender bodies, distinct yellow and black markings, and a characteristic narrow waist. While bees and ants may occasionally explore food sources, it is the wasps that are often associated with picnic intrusions due to their dietary preferences and scavenging behavior.
learn more about pestering here:
https://brainly.com/question/29804871
#SPJ11
This ecosystem has very few plants and a limited number of animal species. what two non-living factors limit the plants and animals that live here?
sandy soil and lots of rainfall
little sunlight and little water
sandy soil and lots of rainfall
high temperature and little rainfall
Answers
I really need 1-4 pleaseeee
Answers
Answer:
Answer below!
Explanation:
1. Genotypic ratio: 1 : 1 ( GG = 50%, Gg = 50% )
Phenotypic ratio: 1 : 0 ( Since the dominant trait always shows, the plant would only exhibit trait G, green pods = 100 % )
2. Genotypic ratio: 1 : 1 ( Rr = 50%, rr = 50% )
Phenotypic ratio: 1 : 1 ( Oval shell = 50%, round shell = 50% )
3. Genotypic ratio: 1 : 0 ( ss = 100% )
Phenotypic ratio: 1 : 0 ( short tooth = 100% )
4. Genotypic ratio: 1 : 0 ( Bb = 100% )
Phenotypic ratio: 1 : 0 ( brown eyed = 100% )
Hope this helps, good luck!
which statement best describes how a scientific theory is created?
A theory is an educated guess based on the observations of one scientist.
A theory is the summary of a hypothesis supported by repeated testing.
A theory is developed only by scientists who work in a laboratory.
A theory is just a hunch, so it can be developed by anyone.
Answers
The statement that best describes how a scientific theory is created is "A theory is the summary of a hypothesis supported by repeated testing."
Scientific theory provides predictions in addition to the already established facts that will be taken into account if the theory is correct.A scientific theory is developed based on multiple observations, experiments, and tests conducted by various scientists in different settings. The theory is then formed by summarizing and analyzing the results of these tests to explain a natural phenomenon. It is not just an educated guess or a hunch developed by a single scientist or anyone.Know more about scientific theory here
https://brainly.com/question/17152046
#SPJ11
In skeletal muscles, many individual muscle fibers are wrapped by connective tissue called _____.
Answers
In skeletal muscles, many individual muscle fibers are wrapped by a connective tissue called endomysium.
The endomysium is a delicate, thin layer of connective tissue that surrounds and provides support to each muscle fiber, allowing it to function independently from its neighboring fibers.
Additionally, groups of muscle fibers are bundled together and surrounded by another layer of connective tissue called the perimysium, forming a structure known as a fascicle.
Multiple fascicles come together to form the entire skeletal muscle, and they are wrapped by yet another layer of connective tissue called the epimysium.
Together, the endomysium, perimysium, and epimysium provide structural support, protection, and stability to the skeletal muscle, ensuring its proper functioning during muscle contraction and relaxation.
These connective tissues also play a crucial role in transmitting the force generated by muscle fibers during contraction to the attached tendons and bones, facilitating movement.
For more such answers on Endomysium
https://brainly.com/question/28387231
#SPJ11
Most autotrophs convert the sun's energy into chemical energy that is stored in macromolecules, which they then use to ____ and ____.
Answers
Answer:
provide structural support , speed biochemical reactions
Explanation:
If the independent variable DOES effect the outcome of the experiment, the Chi-Squared value will be ______ the critical value because you are ________ the null hypothesis.
Answers
If the independent variable does affect the outcome of the experiment, the Chi-square value will be greater than the critical value because you are rejecting the null hypothesis.
What is Chi-square?The Chi-square is a statistical tool used to test the significant difference between two sets of similar data. It is an inferential statistical tool that can be used to test the acceptability or otherwise of null hypotheses.
The Chi-square value from data must be greater than the critical value in order for the null hypothesis of the experiment that serves as the source of the data to be rejected. The conclusion would be that there is no significant difference between the two sets of data.
On the other hand, when the critical Chi-square value is greater than the calculated value, the null hypothesis is accepted and the conclusion would be that there is no difference between the two sets of data.
More on Chi-square can be found here: https://brainly.com/question/14082240
#SPJ1
what cause ocean acidification.
Answers
Answer: Ocean acidification is primarily caused by the uptake of carbon dioxide from the atmosphere .
Explanation:
BRAINLYEST QUESTION A drug company performed a study to test the effectiveness of a new headache medicine. The researchers grouped the patients into two different groups. One group was given the pills that contained the new medicine. The other group were given pills that did NOT contain the new medicine. Why did the researchers NOT tell the patients which pill they were given?
A) to make sure they didn't get angry
B) to prevent errors in data collection
C) to keep people from leaving the study
D) to prevent bias in the data collection
Answers
Answer:
D) to prevent bias in the data collection
Explanation:
If the researchers told the patients of the pill they took, it could create bias.
Bias can make the experiment's outcome end in a different way because of the way it influences the people taking the pill.
Bias can create another factor in an experiment, making your results unreasonable due to the addition of another factor.
#LearnWithBrainly
What trophic level(s) do the birds occupy? Choose all that apply.
Answers
Answer:
Third Trophic Level
Explanation:
Third Trophic Level
Answer:
my geography teacher told me it was the under canopy, canopy and emergent layer
Explanation:
What is a releaser? In biology
Answers
Answer: Feature that produces a response.
What process breaks glucose down to be used as an energy source?
Answers
Which is not likely to be studied by a biologist?
Answers
Answer:
there are many things that are not studied by biologist such as physics, figuring out new elements
Explanation:
biologists are people that study peoples life
Answer:
clouds
Explanation:
Select all the correct answers. What were the main points of Wegener's hypothesis about continental drift? All pieces of land on Earth were once joined together. Earth's surface is covered with continental plates. All the continents are moving at a slow pace. Earth must have formed billions of years ago.
Answers
Answer:
All pieces of land on Earth were once joined together.
Earth's surface is covered with continental plates.
All the continents are moving at a slow pace.
Explanation:
According to the Wegener, at first all continents are fuse together make a supercontinent which later broke apart into seven large masses of land. All the continents are moving away from each other at very slow rate. The surface of earth is covered with continental plates that is responsible for the breaking and movement of continents from each other.
Answer:
All pieces of land on Earth were once joined together.
All the continents are moving at a slow pace.
Explanation:
:)
Information on Plasma Membrane
(first answer gets a brainliest!)
Answers
Answer:
The plasma membrane, also called the cell membrane, is the membrane found in all cells that separates the interior of the cell from the outside environment.The plasma membrane consists of a lipid bilayer that is semipermeable. The plasma membrane regulates the transport of materials entering and exiting the cell.
Explanation:
A recent encyclopedia entry about dogs cites multiple research papers done by scientists at veterinary schools. According to the article, Labrador retrievers come in two specific breeds: English and American. The English breed is described as stocky and heavy, while the American breed is described as tall and lanky. The article describes current scientific research as showing that males of both breeds usually weigh about 29-41 kg (65-90 lb), and females weigh 25-32 kg (55-70 lb). Coat colors for both breeds come in solid black, yellow, or chocolate. All labs have strong tails and webbed feet, which help them swim. Devon would like to use this information to determine if his new dog is an English or American Labrador retriever.
Which best describes the reliability of the information?
It is not reliable because only scientists can use scientific information for reference.
It is not reliable because it doesn’t talk about how to test and only gives data about the breeds.
It is reliable because the article is based on multiple studies done by scientists at multiple veterinary schools.
It is reliable because it gives information about both types of Labradors in addition to information about other types of dogs.
Answers
Answer:
It is reliable because the article is based on multiple studies done by scientists at multiple veterinary schools.
Explanation:
The information in the article can be described as reliable due to the fact that it is based on multiple studies by scientists.
When a study is carried out by different group of independent researchers and a similar result if obtained, the results becomes more or less a theory. A research that is reproducible and gives similar result can totally be relied on for information.
why social relationships are necessary for the survival of human being
Answers
Answer:
They help you live longer
Explanation:
Research has shown that social connections not only impact your mental health, but your physical health as well. A review of 148 studies (308,849 participants) indicated that individuals with stronger social relationships had a 50% increased likelihood of survival.
Food chains never have more than five trophic levels. Based on your experiences with this lab and looking at the energy pyramid below, why do you think we can't have a sixth trophic level in an ecosystem?Question 17 options:Not enough energy is available to be transferred from the fifth trophic level to the sixth trophic level to support organisms. The carrying capacity of an ecosystem is already reached with five trophic levels.All the organisms would already be eaten by lower trophic levels by the time it's time for the sixth trophic level to eat.
Answers
The energy present in the ecosystem is being conveyed from producers to each level of the ecosystem. Photosynthesis is the process involve in the conversion of the energy from the sun to chemical energy. The number of trophic levels in an ecosystem is confines to 4-5 only. Only 10 % of energy is being conveyed from one level to the next. If this will be the case, each level will have a decrease of energy. If a sixth level will be present, there will be not enough energy to provide the species on such level.
Answer is Option 1 - Not enough energy is available to be transferred from the fifth trophic level to the sixth trophic level to support organisms.
This organelle uses light energy to make sugar from carbon dioxide and water are
Answers
Answer: Chloroplast
Explanation:
Plants and some algae have chloroplasts responsible for photosynthesis. Plants undergo photosynthesis to transform light energy into chemical energy. This energy is stored in the form of sugar to support their growth and provide energy. Chloroplasts have a double membrane, with the thylakoid membrane located within the inner membrane.
Photosynthesis occurs within the thylakoid membrane, which is folded into sacs called thylakoids. Chlorophyll, a green pigment, is present in the thylakoids and it absorbs light energy to split water molecules into hydrogen and oxygen. The oxygen is released into the atmosphere while the hydrogen is used to create ATP, a molecule that stores energy. ATP and hydrogen are then utilized to make sugar, the final product of photosynthesis.
To know more about chloroplast,
https://brainly.com/question/1741612
Chloroplast
Explanation:
Chloroplast is a green pigmented organelle which some eukaryotes (such as plants and algae) have in their cells and it is in charge of photosynthesis.
Which of the following is the correct flow of air leaving the bronchial tree from the alveoli?
bronchioles, terminal bronchioles, respiratory bronchioles, tertiary bronchi
terminal bronchioles, respiratory bronchioles, bronchioles, tertiary bronchi
respiratory bronchioles, terminal bronchioles, bronchioles, tertiary bronchi
Answers
The correct flow of air leaving the bronchial tree from the alveoli is respiratory bronchioles, terminal bronchioles, bronchioles, tertiary bronchi.
The respiratory bronchioles are the smallest airways of the bronchial tree that have alveoli buds on their walls. They branch from the terminal bronchioles, which are the last segment of the conducting zone of the respiratory system.
The bronchioles follow the respiratory bronchioles and they are small airways that lack cartilage in their walls, making them more susceptible to collapse.
Finally, the tertiary bronchi, also known as segmental bronchi, are the first branches of the bronchial tree that lead to specific lobes or segments of the lung.
So, the flow of air leaving the bronchial tree from the alveoli starts from the respiratory bronchioles, followed by the terminal bronchioles, then the bronchioles and finally the tertiary bronchi.
For more details about bronchioles click here:
https://brainly.com/question/31141745#
#SPJ11
______ means protecting natural resources, such as water and trees. Question 18 options: Recycling Reprocessing Collection Conservation
Answers
Answer:
Conservation
Explanation:
Conservation is the act of saving and protecting the earth's natural resources.