Let’s say you have a protein that normal contains the codon 5’ ACC 3’. After a mutation occurs this codon now reads 5’ AUC 3’. What kind of mutation occurred?
A. Nonsynonymous (missense)
B. Synonymous
C. Nonsense
D. Frameshift
Answers
The mutation that occurred in the codon is (A) nonsynonymous (missense) mutation.
A mutation is a change in the DNA sequence that may affect the structure, function, or regulation of the DNA. Nucleotide substitutions, deletions, insertions, inversions, and translocations represent the various kinds of mutation. Some types of mutations are:-
Point mutations refer to those mutations which affect a single base pair in the DNA molecule. Substitution of nucleotides, insertions, and deletions are all examples of point mutations. Substitutions of nucleotides may be synonymous or nonsynonymous mutations. In some cases, insertions and deletions result in frameshift mutations.Therefore, the correct option is (A) nonsynonymous (missense) mutation since mutation of a single nucleotide 'C' (Cytosine) has occurred in the codon 5’ ACC 3’. As a result, a single nucleotide 'C' has been replaced by 'U' (Uracil) which has changed the codon to 5’ AUC 3’.
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Related Questions
is a stretch of dna consisting of an operator, a promoter, and genes for a related set of proteins, usually making up an entire metabolic pathway.
Answers
Operon is a stretch of DNA consisting of an operator, a promoter, and genes for a related set of proteins, usually making up an entire metabolic pathway.
A grouping of genes along the DNA that code for functionally similar proteins is known as an operon and is a genetic regulatory mechanism that is present in bacteria and their viruses. Because of this property, protein production can be coordinated to meet the demands of the cell.
An operon is a collection of genes that are all translated into the same mRNA and share a common promoter. Operons come in two different varieties: lac and trp. The lac operon is an inducible operon that is present in Escherichia coli and encodes the genes involved in the catabolism of lactose.
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Which of the following pieces of information CANNOT be determined from the fossil record?
Answers
Answer:
Evidence of every species that ever existed.
Explanation:
Two indivduals would make slightly different proteins as a result of chromsomes true or false
Answers
True. Two individuals can make slightly different proteins as a result of differences in their chromosomes. Chromosomes carry genes, which contain the instructions for making proteins.
Each individual has a unique set of chromosomes inherited from their parents, and variations in the DNA sequence of genes can lead to differences in the proteins produced.
These genetic differences can arise through various mechanisms such as genetic mutations, genetic recombination during sexual reproduction, and the presence of different alleles (alternative forms of a gene) in the population. These variations in the DNA sequence can affect the structure and function of proteins, leading to individual differences in traits and characteristics among individuals.
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The evolutionary history of a group of organisms can be represented in a branching diagram called a phylogenetic tree. Phylogenetic trees are visual representations of evolutionary relationships between organisms.
Answers
The term "evolutionary" refers to the gradual process of change and development over time that leads to the diversity of life on Earth. Phylogenetics, on the other hand, is the study of evolutionary relationships between different organisms.
This field aims to understand how different species are related to one another and how they have evolved over time. To represent these relationships, scientists often create phylogenetic trees, which are branching diagrams that show the evolutionary history of a group of organisms. These trees help us understand the patterns of evolutionary change that have occurred over time and how different species are related to one another.
The evolutionary history of a group of organisms can be represented in a branching diagram called a phylogenetic tree. Phylogenetic trees display the evolutionary relationships between organisms, showcasing their shared ancestry and divergence events throughout time.
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The fruiting body found above ground in fungi is called the
A. cap.
B. hyphae.
C. mycelium.
Answers
Answer:
fruiting body is called cap
The mycelium is the fruiting body found above ground in fungi.
The pileus is the technical name for the cap, or cap-like part, of a basidiocarp or ascocarp (fungal fruiting body) that supports a spore-bearing surface, the hymenium.
A hypha is a long, branching, filamentous structure of a fungus, oomycete, or actinobacterium. In most fungi, hyphae are the main mode of vegetative growth, and are collectively called a mycelium.
A mycelium is a network of fungal threads or hyphae. Mycelia often grow underground but can also thrive in other places such as rotting tree trunks. A single spore can develop into a mycelium. The fruiting bodies of fungi, such as mushrooms, can sprout from a mycelium.
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Marine homeotherms have a problem in sea water because Group of answer choices They are always in variable temperature conditions Sea water tends to cool down much faster than air They have low concentrations of hemoglobin They are likely to be losing heat to the water
Answers
Marine homeotherms are animals that are capable of maintaining a constant internal body temperature. Despite this ability, they face a problem in seawater due to various reasons.
Firstly, the temperature of seawater is variable, which makes it challenging for marine homeotherms to regulate their body temperature. This fluctuation is due to factors such as the depth of the water, location, currents, and the season. While homeotherms can regulate their internal temperature, the external temperature remains a significant challenge as their bodies are continuously losing heat to the water.
Secondly, seawater tends to cool down much faster than air, which makes it difficult for these animals to maintain their body temperature. Seawater absorbs more heat than air, making it challenging for homeotherms to stay warm. This explains why some marine homeotherms migrate to warmer waters during the winter months.
Finally, marine homeotherms have low concentrations of hemoglobin, which makes it hard for them to transport oxygen to their tissues. Hemoglobin is responsible for carrying oxygen to the tissues of an organism. It is vital in regulating body temperature as it helps generate heat. In conclusion, marine homeotherms have a problem in seawater due to variable temperature conditions, fast cooling seawater, low hemoglobin concentrations, and continuous heat loss to the water.
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All matter is made up of? ANSWER FAST PLS!!
Answers
please help me answer this
Answers
Answer:
last one a dormancy structure D
Explanation:
It helps keeps bacteria and stuff dormant`
give two functions of plasmids in bacteria
Answers
The main function of plasmids is to carry antibiotic resistant genes and spread them in the whole human or animal body. ...
Which of the following correctly compares fermentation and cellular respiration?
Question 20 options:
Cellular respiration produces more ATP molecules than fermentation.
Both provide ATP molecules, but only fermentation occurs when oxygen is present.
Both result in substantial ATP molecules and lactic acid production.
Cellular respiration provides ATP molecules at a slower rate than fermentation.
Answers
Answer:
NO SORRY I DONT KNOW
Explanation:
a rectangular room is 10 M long and 7.5 M wide the cost of covering the floor with carpet 1.25 m wide at two Both provide ATP molecules, but only fermentation occurs when oxygen is present.
250 per metre
comparison of shank3 deficiency in animal models: phenotypes, treatment strategies, and translational implications
Answers
Shank3deficiency in animal models leads to various phenotypes, treatment strategies are being explored. Hence the correct option is A.
Shank3 is a gene that codes for a protein involved in synaptic function, and mutations in this gene have been linked to neurodevelopmental disorders such as Phelan-McDermid syndrome and autism spectrum disorder (ASD). Animal models with Shank3 deficiency exhibit a range ofphenotypes, including social and communication deficits, repetitive behaviors, and cognitive impairments
Researchers are actively investigating treatment strategies for Shank3 deficiency. Various approaches such as pharmacological interventions, gene therapy, and behavioral interventions are being explored in animal models. These studies aim to identify potential therapeutic targets and interventions that can ameliorate the phenotypic traits associated with Shank3 deficiency.
Hence the correct option is A.
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The cell wall makes plant stems and trees very rigid and gives them structure. This would be similar to which of our body systems? A. Muscular B. Skeletal C. Endocrine D. Nervous system
Answers
Answer:
B. Skeletal
Explanation:
The cell wall could be represented as the bones in our body.
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Cat coat color is an X-linked trait.
Calico cats typically have patches of black, white, and orange on their coats as a result of X-inactivation. Most calico cats are female, but rarely a male calico will be born into a litter.
Which of the following could explain calico coat color in a male kitten?
Choose 1 answer:
(choice A)
A
The male kitten has a genotype of XXY.
(choice B)
B
The male kitten has a genotype of XXX.
(choice C)
C
The male kitten has a genotype of XYY.
(choice D)
D
The male kitten has a genotype of YY.
Answers
Answer:
d)Explanation:
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A scientist eliminated all living organisms in a jar of soup by heating it. He then left the soup jar uncovered for some days. After a few days, he saw molds in the soup. What most likely formed the mold?
1) Mold spores present around the jar
2) Nonliving matter in the environment
3) Water molecules in the soup
4) Glass particles in the jar
Answers
Answer:
1)Mold spores present around the jar
Hydrophilic molecules readily associate with
A) hydrophobic molecules.
B) water molecules.
C) lipid molecules.
D) both \(\mathrm{A}\) and \(\mathrm{B}\)
E) all of the above
Answers
Hydrophilic molecules readily associate with water molecules. Option B.
What are hydrophilic molecules?Hydrophilic molecules are molecules that love water. Hydrophilic is formed from two words, namely:
Hydro: which means waterPhilic: which means to loveThus, hydrophilic molecules are water-loving molecules. They are the opposite of hydrophobic molecules. Hydrophobic is formed from "hydro" which means water and "phobia" which means to hate.
In other words, hydrophilic molecules will not readily associate with hydrophobic or lipid molecules but will readily associate with water molecules.
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Hydrophilic molecules readily associate with hydrophobic molecules, water molecules, and lipid molecules. The correct option is E) all of the above.
What are Hydrophilic molecules?This refers to molecules that associate with water and other polar substances. This association is more thermodynamically favorable than their interactions with oil or other hydrophobic solvents. Hydrophilic molecules are typically charge-polarized and capable of hydrogen bonding. They also attract water out of the air.
Hence, all the options listed above are correct.
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xiao t, et al. (2005) histone h2b ubiquitylation is associated with elongating rna polymerase ii. mol cell biol 25:637– 651.
Answers
The paper by Xiao et al. (2005) titled "Histone H2B ubiquitylation is associated with elongating RNA polymerase II" was published in the journal Molecular and Cellular Biology.
In this study, the authors investigated the association between histone H2B ubiquitylation and RNA polymerase II during transcription elongation.They conducted experiments to examine the dynamics and distribution of ubiquitylated H2B on chromatin, as well as its relationship with RNA polymerase II. The results of the study showed that histone H2B ubiquitylation is indeed associated with elongating RNA polymerase II. The authors observed that H2B ubiquitylation levels increased along actively transcribed genes and were highest at the 3' end of genes.
They also found that the presence of ubiquitylated H2B correlated with the presence of RNA polymerase II on the chromatin. In conclusion, Xiao et al. (2005) demonstrated a link between histone H2B ubiquitylation and the activity of RNA polymerase II during transcription elongation. Their findings contribute to our understanding of the regulatory mechanisms involved in gene expression.
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describe the movement of water across a cell membrane and the effects on the cell that is in a hypertonic, hypotonic or an isotonic environment surrounding a cell.
Answers
Answer:
If a cell is placed in a hypertonic solution, water will leave the cell, and the cell will shrink. In an isotonic environment, there is no net water movement, so there is no change in the size of the cell. When a cell is placed in a hypotonic environment, water will enter the cell, and the cell will swell.
Explanation:
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3 examples of inherited variation in dragon fruit
Answers
Answer:
Dragon fruit, a kind of fruit belonging to Hylocereus spp., has brought about interest in China not only due to its important economic value with high contents of nutrients, but also due to the striking tolerance to drought stress. Fifteen morphological traits and 111 Inter-Simple Sequence Repeat (ISSR) markers generated from 16 primers were firstly employed to discriminate 50 accessions recently selected in China, as well as to evaluate their genetic relatedness. According to univariate statistical analysis of morphological traits, high variations were observed between or/and within the wild and cultivated lines. The dendrogram of 50 accessions was constructed based on morphological traits. Taking 7.50 as a threshold, three major clusters could be observed, i.e. the first included nine genotypes, which mainly belonged to wild accessions; the second clusters standing for the red pulp genotypes; the third consisting of the white pulp accessions. Each ISSR primer generated 4–10 obvious DNA bands ranging from 100 bp to 1500 bp, with the average of 6.9 per primer.
Dragon Fruit is found in Central America, Northern South America and some parts of Mexico.
There are three different types of Dragon Fruit which are its inherited variations.
Hylocereus undatus or piyata blanca which is pink or red skin having white flesh and black seeds.
Hylocereus costaricensis or piyata roja which is pink or red skin having red flesh and black seeds.
Hylocereus megalanthus or piyata amarilla which has yellow skin, white flesh and black seeds.
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What are the 5 parts of the nail?
Answers
The nails are the protective covering on the dorsal surface of the distal phalanges of the fingers and toes in humans. Nails are composed of several different parts, each of which serves a specific purpose. The five main parts of the nail are the nail plate, the nail bed, the lunula, the cuticle, and the matrix.
The nail plate is the visible part of the nail that we typically think of as the "nail." It is made up of a hard protein called keratin, which is the same substance that makes up hair and the top layer of skin. The nail plate protects the fingers and toes from injury and is also important for grasping and manipulating small objects.
The nail bed is the skin underneath the nail plate. It is made up of living cells that produce the keratin for the nail plate. The nail bed also contains blood vessels and nerves that provide nourishment and sensation to the nail.
The lunula is the crescent-shaped white area at the base of the nail plate. It is actually the visible part of the matrix, which is the area where the nail cells are produced. The lunula is important because it shows the health of the matrix and can indicate certain medical conditions.
The cuticle is the thin, transparent layer of skin that overlaps the nail plate at the base of the nail. It protects the matrix from infection and injury, and helps to keep the nails and skin moisturized.
The matrix is the area where the nail cells are produced. It is responsible for the growth of the nail plate and is located at the base of the nail, beneath the lunula. The matrix also contains blood vessels and nerves that provide nourishment to the growing nail cells. Damage to the matrix can result in abnormal nail growth, discoloration, or deformity.
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The Tibetans and Han Chinese share several genetic traits and DNA. However, the EPAS1 gene, which increases the ability of red blood cells to carry oxygen even in low oxygen environments, is only commonly found in the Tibetan population that live in higher elevations. Explain why this gene is only common in Tibetan populations from the perspective of competitive advantage and natural selection. Write your answer in three to five sentences.(4 points)
Answers
Answer:
When in higher altitudes, ticker blond has a tendency to cause problems like heart attack's, however the Tibetans have adapted to the high altitudes and this has made their blood thinner in order to keep them safe in the altitudes, including that it has low oxygen rates in the altitude therefore providing more oxygen in the bloods cells.
Explanation:
:D It's not my best explanation but I hope this helps <3.
Owing to the fact that ability of the redblood cells to to carry oxygen even in low oxygen environments is neccessary at high elevations, the Tibetan population that live in higher elevations are found to possess the EPAS1 gene.
What is natural selection?The term natural selection refers to the fact that organisms that are better adapted to their habitat will live longer and reproduce. Now we have to note that owing to the elevation at which they live, the people that possess this EPAS1 gene can cope with oxygen stress that could likely occur at a high altitude.
As such, the Tibetan population that live in higher elevations are found to possess the EPAS1 gene.
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Does anyone know this? Please help! Due in 45 min
Answers
Answer:
I think it's A tell me if it's wrong
hope it helps
have a good day :)
Explanation:
Answer:
D. l,ll, and lll
Explanation:
Hope this helps!
Which type of genetic drift occurs when many members of a population die, resulting in a great loss of genetic diversity?.
Answers
Answer:
Genetic drift is a process in which allele frequencies within a population change by chance alone as a result of sampling error from generation to generation. Genetic drift is a random process that can lead to large changes in populations over a short period of time.
if a couple that are both heterozygous carriers of the cystic fibrosis allele have children, the chance that both their first and their second child are carriers is 0.5 x 0.5, or 25%, as determined by the_______
Answers
If a couple that is both heterozygous carriers of the cystic fibrosis allele have children, the chance that both their first and second child will be carriers 1/4 or 25% is as determined by the crossing.
Monohybrid crossingThe cystic fibrosis condition is a recessive one. Let's assume that the allele for cystic fibrosis is a for the affected and A for the unaffected.
A couple that is both heterozygous would have Aa as their genotype:
Aa x Aa
AA Aa Aa aa
The genotypes and phenotypes of the offspring would be as follows:
AA = unaffected
Aa = unaffected
aa = affected
Chances of an offspring being affected = 1/4 or 25%
Chances of an offspring being affected = 3/4 or 75%
Chances of an offspring being a carrier = 1/2 or 50%
Now, let's calculated the probability.
Probability of the first child being a carrier = 1/2
The probability of the second child also being a carrier = 1/2
The probability of both their first and second child being carriers = 1/2 x 1/2
= 1/4 or 25%
Going by the analysis of the monohybrid cross, the probability of both their first and second child being carriers is 1/4 or 25%.
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A student sets up an investigation by placing a plastic bag over a plant. She secures the plastic bag so that it is completely sealed and nothing can enter. She observes the plant daily to see if it remains green and healthy. Which TWO questions is this investigation, as described, designed to answer?
A. Can the plant perform respiration without a large supply of oxygen?
B. Can the plant perform respiration without a large supply of carbon dioxide?
C. Can the plant perform photosynthesis without a large supply of oxygen?
D. Can the plant perform photosynthesis faster than a plant that is not sealed?
E. Can the plant perform respiration faster than a plant that is not sealed?
G. Can the plant perform photosynthesis without a large supply of carbon dioxide?
Answers
Answer:
A
Explanation:
How do sensory nerves differ in function from motor nerves?
A. The CNS controls sensory nerves and the PNS controls motor nerves.
B. Sensory nerves carry information to the CNS, and the motor nerves carry information away from the CNS.
C. Sensory nerves carry information away from CNS, and motor nerves carry information to the CNS.
D. The PNS controls the sensory nerves and the CNS controls motor nerves.
please help!!!
Answers
Answer:
B.
Explanation:
When you touch something the sensory nerves carry it to the brain while your motor nerves tell you to touch it. So being carried to and from. I also got it right on the quiz.
Sensory nerves carry information to the CNS, and the motor nerves carry information away from the CNS. Therefore, the correct statement is option B.
What is central nervous system?The central nervous system (CNS) includes the brain and the spinal cord responsible for processing information received from peripheral nervous system (PNS) to generate appropriate responses. The brain is the most complex organ of the CNS, carries various functions, including sensation, perception, movement, etc.
Sensory nerves transmit information from sensory receptors, such as those in the skin, muscles, etc. to central nervous system (CNS) and sensory nerves are activated by various types of stimuli.
Motor nerves transmit signals from the CNS to muscles, and other effectors throughout the body. These signals are responsible for activation of muscle contractions, produce movements, and other responses.
Therefore, sensory and motor nerves both work together to perform physiological functions where sensory nerves carry information to the CNS, and the motor nerves carry information away from the CNS.
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What is the difference between growth and development in a multicellular organism.
Answers
The two concepts "growth" and "development" that have probably given us the most trouble over our academic careers are these.
Growth is the simple definition of "an increase in size and mass of a specific organism over time," whereas "development" covers a wider range of topics. The definition of "development" is "the process through which a particular organism changes from a lone cell to a more complex multicellular creature."While development can include an organism's structures, functions, capacities, etc., growth just considers how big or enormous an organism is. The biomass can be used to gauge growth. Cell differentiation is a necessary component of development. These cells can become highly specialized and perform their respective activities throughout time. Every living thing is in a different stage of growth.Learn more about the Growth and development with the help of the given link:
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What’s an example of a mutualism ecological relationship in a tundra biome?
Answers
Answer:
Answer. Mutualism: One example of symbiotic mutualism in the tundra biome involves lichens. Lichen does look like moss but actually represents a symbiotic relationship between fungi and algae or algae. The fungus "eats" the sugar in the algae for photosynthesis and the algae receives protection from the fungus.
(q002) when griffith injected heat-killed infectious bacteria mixed with live harmless bacteria, he found that the mice died because
Answers
Griffith discovered that when he injected mice with a mixture of live, innocuous bacteria and heat-killed infectious bacteria, the mice perished because they were unable to detect the smooth strain.
The Griffith experiment is what?Streptococcus pneumoniae, S-strain, a smooth and virulent variety, was used in Griffith's experiment. R strain is abrasive and safe.
1. The mouse's immune system recognizes the harmful bacterial strain, and the mouse survives.
2. The mouse perishes because it is unable to identify the smooth strain.
3. The mouse survives when the S strain is injected and destroyed by heat.
4. However, the mouse perishes when live R strain and heat-killed S strain are combined and injected.
This experiment demonstrates how bacteria's DNA may change.
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true or false. the lymphatic system is the only system that transports nutrients from the small intestine to various parts of the body.
Answers
False. Lymph exclusively carries fat-soluble nutrients. Water-soluble nutrients are transported by blood.
The lymphatic system's second role is to absorb fats and fat-soluble vitamins from the digestive system and then transport them to the venous circulation.
The lymphatic system of the small intestine. The morphology of intestinal lymphatics in different animals has revealed that the small intestine has two distinct lymphatic networks that drain into a single network of collecting lymphatics.
The lymphatic system aids in the maintenance of fluid balance in the tissues and blood, the delivery of nutrients, oxygen, and hormones to cells, the transport of fats, proteins, and white blood cells to the blood, the fight against infections, and the removal of foreign organisms and waste products.
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Dalila plans an experiment to examine plant growth. She made a table to record her results.
What addition to her table would most improve her experimental investigation?
a row in which no fertilizer is used
a row in which 12 grams of fertilizer are used
a column that shows how the dependent variable changes
a column that shows how the independent variable changes
Answers
The addition to her table that would most improve her experimental investigation is a column that shows how the dependent variable changes. The correct option is C.
What is an experimental investigation?An experiment is a procedure that a researcher uses to determine the viability of his idea. It is crucial to include both the “dependent” and “independent” variables in an experiment in order to do it right.
Any variable that alters as a result of the existence of an independent variable is referred to as a dependent variable. An independent variable, on the other hand, is a variable that is altered in order to control the experiment.
Therefore, the correct option is C. a column that shows how the dependent variable changes.
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Answer:c
Explanation: