Homework Answers
Answer. Dominant means when an allele mask the phenotypic expression of other allele [recessive]. Recessive allele is not deleterious and it also never means that dominant allele have higher fitness because fitness means when a offspring is better fitted to environment, the fitness is regardless of their genotype. So, in some case it has seen that recessive offspring are better fitted in environment, so they are naturally selected and the ratio of homozygous recessive show better fitness than homozygous dominant or heterozygous.
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Cor.. 38 wor D Question 10 2 p Do dominant alleles have a higher fitness (better...
7. Why do dominant alleles tend to be advantageous and recessive alleles tend to be disadvantageous...
7. Why do dominant alleles tend to be advantageous and recessive alleles tend to be disadvantageous in most populations? 8. You are studying a population of parrots and you observe that there are two alleles for wing color. Allele 1 codes for green wings and is dominant over allele 2, which codes for red wings. Allele 2 is at a frequency of 70% of the population, what should be the frequency of allele 1 homozygotes? 9. You are studying a...
Why do lac^-d alleles (one of mutations in lac repressor) have a dominant-negative affect? explain it...
Why do lac^-d alleles (one of mutations in lac repressor) have a dominant-negative affect? explain it shortly.
using the information from this question, what is the frequency of dominant alleles (p)? using the...
using the information from this question, what is the
frequency of dominant alleles (p)?
using the information from the following questions,
what is the proportion of heterozygotes in the lizard
population?
There is a population of lizards that live in high grass. White sand dunes are slowly encroaching on their habitat. Their phenotypes are determined as follows: AA: Green Aa: Green aa: White You know that 9% of the lizards are white. Assuming this population is in Hardy-Weinberg equilibrium, what...
Question 2: Explain why recessive pathogenic mutations often segregate at higher frequencies than dominant pathogenic mutations...
Question 2: Explain why recessive pathogenic mutations often segregate at higher frequencies than dominant pathogenic mutations in human populations. (3 points)
In a population of mice a particular locus has two alleles A1 (dominant) and A2 (recessive)....
In a population of mice a particular locus has two alleles A1 (dominant) and A2 (recessive). There are 126 A1A1, 167 A1A2 and 88 A2A2. Is this population in Hardy-Weinberg equilibrium (3 pts)? In a population of Gragons, there are 3151 A1A1, 1678 A1A2 and 2014 A2A2 individuals. If the environment changes so that the homozygous recessive genotype suffers a reduction of fitness where its fitness is now 0.73, but the other genotypes are unaffected, what will be the frequency...
Can you explain how to do number 4? dominant individual and umail mmetance, hów can one...
Can you explain how to do number 4?
dominant individual and umail mmetance, hów can one differentiaté between a homozygous one who is heterozygous for the dominant trait? (A) By crossing the individuals in question (B) By crossing each individual with a known homozygous recessive and examining the offspring By crossing each individual with a known heterozygote and examining the offspring (C) (D Both B and C If a male hemophiliac (Xhy) is crossed with a female carrier of both...
Match the following terms with the appropriate description below: a. alleles b. autosomes c. dominant allele...
Match the following terms with the appropriate description
below:
a. alleles b. autosomes c. dominant allele d. genotype e.
heterozygous f. homozygote g. phenotype h. recessive allele i. sex
chromosomes
1. ________________ genetic make-up
2. ________________ how genetic make-up is expressed
3. ________________ chromosomes that dictate most body
characteristics
4. ________________ alternative forms of the same gene
5. ___________an individual bearing two alleles that are the same
for a particular trait 6. ________________ an allele that is
expressed, whether in...
Which of the following is NOT true regarding Hardy-Weinberg equilibrium (HWE)?
Question 1 Which of the following is NOT true regarding Hardy-Weinberg equilibrium (HWE)? Most real species will not be at HWE at all loci within their genome If a locus has genotype frequencies consistent with HWE, then the species as a whole is not evolving If a locus has genotype frequencies consistent with HWE, then no evolution is occurring at that locus If a locus does NOT have genotype frequencies consistent with HWE, then some form of evolution is occurring at that locus Question 2 Which of...
Q3 Question 3 1 Point In a Hardy-Weinberg situation, suppose that cystic fibrosis (a rare genetic...
Q3 Question 3 1 Point In a Hardy-Weinberg situation, suppose that cystic fibrosis (a rare genetic disorder caused by having two recessive alleles) occurs in approximately 1 out of 1600 births in Canada. What is the estimated proportion of the population that would be carriers for the disorder? Q4 Question 4 2 Points For some genetically linked disorders, the survival of the heterozygous individual may be less than that of a homozygous dominant individual (while homozygous recessive individuals still have...
Why do saturated fats have higher melting points than unsaturated fats? Saturated fats stack better than...
Why do saturated fats have higher melting points than unsaturated fats? Saturated fats stack better than unsaturated fats and therefore have more dispersion forces between them. Saturated fats stack better than unsaturated fats and therefore have fewer dispersion forces between them. Unsaturated fats stack better than saturated fats and therefore have more dispersion forces between them. Unsaturated fats stack better than saturated fats and therefore have fewer dispersion forces between them.
using the information from this question, what is the
frequency of dominant alleles (p)?
using the information from the following questions,
what is the proportion of heterozygotes in the lizard
population?
There is a population of lizards that live in high grass. White sand dunes are slowly encroaching on their habitat. Their phenotypes are determined as follows: AA: Green Aa: Green aa: White You know that 9% of the lizards are white. Assuming this population is in Hardy-Weinberg equilibrium, what...
Question 2: Explain why recessive pathogenic mutations often segregate at higher frequencies than dominant pathogenic mutations in human populations. (3 points)
Can you explain how to do number 4?
dominant individual and umail mmetance, hów can one differentiaté between a homozygous one who is heterozygous for the dominant trait? (A) By crossing the individuals in question (B) By crossing each individual with a known homozygous recessive and examining the offspring By crossing each individual with a known heterozygote and examining the offspring (C) (D Both B and C If a male hemophiliac (Xhy) is crossed with a female carrier of both...
Match the following terms with the appropriate description
below:
a. alleles b. autosomes c. dominant allele d. genotype e.
heterozygous f. homozygote g. phenotype h. recessive allele i. sex
chromosomes
1. ________________ genetic make-up
2. ________________ how genetic make-up is expressed
3. ________________ chromosomes that dictate most body
characteristics
4. ________________ alternative forms of the same gene
5. ___________an individual bearing two alleles that are the same
for a particular trait 6. ________________ an allele that is
expressed, whether in...
Q3 Question 3 1 Point In a Hardy-Weinberg situation, suppose that cystic fibrosis (a rare genetic disorder caused by having two recessive alleles) occurs in approximately 1 out of 1600 births in Canada. What is the estimated proportion of the population that would be carriers for the disorder? Q4 Question 4 2 Points For some genetically linked disorders, the survival of the heterozygous individual may be less than that of a homozygous dominant individual (while homozygous recessive individuals still have...
Why do saturated fats have higher melting points than unsaturated fats? Saturated fats stack better than unsaturated fats and therefore have more dispersion forces between them. Saturated fats stack better than unsaturated fats and therefore have fewer dispersion forces between them. Unsaturated fats stack better than saturated fats and therefore have more dispersion forces between them. Unsaturated fats stack better than saturated fats and therefore have fewer dispersion forces between them.
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