Podcast
Questions and Answers
Which of the following best describes the concept of pleiotropy?
Which of the following best describes the concept of pleiotropy?
- A gene has only one common wild-type allele
- A gene mutation occurs in gamete-producing cells
- A gene determines several distinct and seemingly unrelated characteristics (correct)
- A gene has multiple alleles in a population
What is the term for the percentage of the total number of gene copies for one allele in a population?
What is the term for the percentage of the total number of gene copies for one allele in a population?
- Mutation rate
- Allele frequency (correct)
- Pleiotropy
- Monomorphic gene
In the context of mutations, what does a low frequency of gametes with mutations (10^-4 to 10^-6) indicate?
In the context of mutations, what does a low frequency of gametes with mutations (10^-4 to 10^-6) indicate?
- Mutations are rare in gamete-producing cells (correct)
- Mutations have no effect on gametes
- Mutations are always inherited by offspring
- Mutations are common in gamete-producing cells
What does a monomorphic gene refer to?
What does a monomorphic gene refer to?
Which type of allele negatively affects the survival of a homozygote and is known as recessive lethal allele?
Which type of allele negatively affects the survival of a homozygote and is known as recessive lethal allele?
What does pleiotropy primarily refer to?
What does pleiotropy primarily refer to?
Which alleles are often referred to as common variants or polymorphisms?
Which alleles are often referred to as common variants or polymorphisms?
What is the main source of new alleles?
What is the main source of new alleles?
What does a wild-type agouti allele (A) produce in hair?
What does a wild-type agouti allele (A) produce in hair?
What determines the ABO blood types in humans?
What determines the ABO blood types in humans?
How many alleles can each of the HLA genes encode?
How many alleles can each of the HLA genes encode?
How many genotypes produce the four blood phenotypes in the ABO blood type system?
How many genotypes produce the four blood phenotypes in the ABO blood type system?
Which statement about A and B blood types is correct?
Which statement about A and B blood types is correct?
What is the significance of the histocompatibility antigens encoded by the HLA genes?
What is the significance of the histocompatibility antigens encoded by the HLA genes?
How do A and B blood types differ from O blood type in terms of producing antibodies?
How do A and B blood types differ from O blood type in terms of producing antibodies?
What can be said about the dominance relations in ABO blood types?
What can be said about the dominance relations in ABO blood types?
What is the role of HLA genes in the human body?
What is the role of HLA genes in the human body?
Why can successful blood transfusions occur only with matching blood types?
Why can successful blood transfusions occur only with matching blood types?
What distinguishes A and B blood types from AB and O blood types?
What distinguishes A and B blood types from AB and O blood types?
