Question 11 (1 point) Save
As the degree of relatedness within a population increases, the level of inbreeding in that population also increases. As relatedness and inbreeding go up, individuals become more similar genetically and therefore genetic variability goes down. How would an increase in inbreeding and relatedness affect the variability we would see due to over-dominance?
1) The variability would be unaffected because the proportion of heterozygous individuals would decrease and those individuals have the largest expression of phenotype.
2) The variability would decrease because the proportion of heterozygous individuals would decrease and those individuals have the largest expression of phenotype.
3) The variability would increase because the proportion of heterozygous individuals would decrease and those individuals have the largest expression of phenotype.
Question 12 (1 point) Save
As the degree of relatedness within a population increases, the level of inbreeding in that population also increases. As relatedness and inbreeding go up, individuals become more similar genetically and therefore genetic variability goes down. How would an increase in inbreeding and relatedness affect the variability we would see due to incomplete dominance?
1) The variability would be unaffected because the proportion of heterozygous individuals would decrease and those individuals have a phenotype closer to one of the homozygotes.
2) The variability would decrease somewhat because the proportion of heterozygous individuals would decrease and those individuals have a phenotype closer to one of the homozygotes.
3) The variability would increase somewhat because the proportion of heterozygous individuals would decrease and those individuals have a phenotype closer to one of the homozygotes.
Question 13 (1 point) Save
As the degree of relatedness within a population increases, the level of inbreeding in that population also increases. As relatedness and inbreeding go up, individuals become more similar genetically and therefore genetic variability goes down. How would an increase in inbreeding and relatedness affect the variability we would see due to co-dominance?
1) The variability would increase somewhat because the proportion of heterozygous individuals would decrease and those individuals have a phenotype between the homozygotes.
2) The variability would be largely unaffected because the proportion of heterozygous individuals would decrease and those individuals have a phenotype between the homozygotes.
3) The variability would decrease somewhat because the proportion of heterozygous individuals would decrease and those individuals have a phenotype between the homozygotes.
Question 14 (1 point) Save
As the degree of relatedness within a population increases, the level of inbreeding in that population also increases. As relatedness and inbreeding go up, individuals become more similar genetically and therefore genetic variability goes down. How would an increase in inbreeding and relatedness affect the variability we would see due to epistasis?
1) The variability would decrease somewhat because the proportion of heterozygous individuals would decrease and the epistatic interactions would decrease with it.
2) The variability would increase somewhat because the proportion of heterozygous individuals would decrease and the epistatic interactions would increase with it.
3) The variability would increase or decrease somewhat or even stay the same because the proportion of heterozygous individuals would decrease but the epistatic interactions could occur amongst any combination of genotypes.
Question 15 (1 point) Save
As the degree of relatedness within a population increases, the level of inbreeding in that population also increases. As relatedness and inbreeding go up, individuals become more similar genetically and therefore genetic variability goes down. How would an increase in inbreeding and relatedness affect the variability we would see due to pleiotropy?
1) The variability would increase or decrease somewhat or even stay the same because the proportion of heterozygous individuals would decrease but the pleiotropic interactions could occur amongst any combination of phenotypes.
2) The variability would increase somewhat because the proportion of heterozygous individuals would decrease and the pleiotropic interactions would increase with it.
3) The variability would decrease somewhat because the proportion of heterozygous individuals would decrease and the pleiotropic interactions would decrease with it.
I bet your in my class at guelph.
yay guelph
To answer these questions, we need to understand the concepts of relatedness, inbreeding, and genetic variability.
Relatedness refers to the degree of genetic similarity between individuals in a population. Inbreeding occurs when individuals with similar genetics mate and produce offspring. Inbreeding increases relatedness within a population.
Genetic variability refers to the amount of variation in the genetic makeup of individuals within a population. When individuals are more genetically similar, as in the case of increased relatedness and inbreeding, genetic variability decreases.
Now let's apply these concepts to each question:
Question 11:
We are asked about the variability due to over-dominance. Over-dominance occurs when the heterozygous individuals have the largest expression of phenotype. If relatedness and inbreeding increase, individuals become more genetically similar, which means there are fewer heterozygous individuals. Since the proportion of heterozygous individuals decreases, the variability in phenotype expression due to over-dominance would also decrease. Therefore, the correct answer is 2) The variability would decrease because the proportion of heterozygous individuals would decrease and those individuals have the largest expression of phenotype.
Question 12:
We are asked about the variability due to incomplete dominance. Incomplete dominance occurs when the phenotype of the heterozygous individual is intermediate between the homozygotes. If relatedness and inbreeding increase, individuals become more genetically similar, resulting in fewer heterozygous individuals. Since the proportion of heterozygous individuals decreases, the variability in phenotype expression due to incomplete dominance would also decrease, but only somewhat. Therefore, the correct answer is 2) The variability would decrease somewhat because the proportion of heterozygous individuals would decrease and those individuals have a phenotype closer to one of the homozygotes.
Question 13:
We are asked about the variability due to co-dominance. Co-dominance occurs when both alleles in a heterozygous individual are fully expressed. If relatedness and inbreeding increase, individuals become more genetically similar, resulting in fewer heterozygous individuals. Since the proportion of heterozygous individuals decreases, the variability in phenotype expression due to co-dominance would also decrease. Therefore, the correct answer is 3) The variability would decrease somewhat because the proportion of heterozygous individuals would decrease and those individuals have a phenotype between the homozygotes.
Question 14:
We are asked about the variability due to epistasis. Epistasis is the interaction between different genes where the expression of one gene is dependent on the presence of another gene. If relatedness and inbreeding increase, individuals become more genetically similar, which can affect the occurrence of epistatic interactions. However, the specific effect on variability is not clear-cut as epistatic interactions can occur between any combination of genotypes. Therefore, the correct answer is 3) The variability would increase or decrease somewhat or even stay the same because the proportion of heterozygous individuals would decrease but the epistatic interactions could occur amongst any combination of genotypes.
Question 15:
We are asked about the variability due to pleiotropy. Pleiotropy occurs when a single gene influences multiple traits or phenotypes. If relatedness and inbreeding increase, individuals become more genetically similar, which can affect the occurrence of pleiotropic interactions. However, the specific effect on variability is not clear-cut as pleiotropic interactions can occur amongst any combination of phenotypes. Therefore, the correct answer is 1) The variability would increase or decrease somewhat or even stay the same because the proportion of heterozygous individuals would decrease but the pleiotropic interactions could occur amongst any combination of phenotypes.