Podcast
Questions and Answers
What is the main concept that underpins Mendel's basic principles of inheritance?
What is the main concept that underpins Mendel's basic principles of inheritance?
- Particulate inheritance (correct)
- Multiple alleles
- Codominance
- Incomplete dominance
What is the relationship between the genotype and phenotype of a heterozygote in a case of incomplete dominance?
What is the relationship between the genotype and phenotype of a heterozygote in a case of incomplete dominance?
- The phenotype is a combination of both homozygotes
- The phenotype is identical to one of the homozygotes
- The phenotype is unpredictable
- The phenotype is distinct from and often intermediate to the phenotype of either homozygote (correct)
What is an example of codominance in humans?
What is an example of codominance in humans?
- Flower colour in snapdragons
- Roan coat colour in cattle
- The MN blood group (correct)
- The ABO blood group
What is the number of alleles that a diploid individual can carry for a particular gene?
What is the number of alleles that a diploid individual can carry for a particular gene?
What is the term for a gene that affects multiple phenotypes?
What is the term for a gene that affects multiple phenotypes?
What is the reason behind the F1 pink heterozygous phenotype in the snapdragon plant?
What is the reason behind the F1 pink heterozygous phenotype in the snapdragon plant?
What is the genotype of individuals with normal stature in the context of pseudoachondroplasia?
What is the genotype of individuals with normal stature in the context of pseudoachondroplasia?
What is the characteristic of codominance in a monogenic character?
What is the characteristic of codominance in a monogenic character?
What is the expected outcome of an individual with the genotype D/D in the context of pseudoachondroplasia?
What is the expected outcome of an individual with the genotype D/D in the context of pseudoachondroplasia?
What is the frequency of the recessive allele in commercial cultivated varieties of pea plants?
What is the frequency of the recessive allele in commercial cultivated varieties of pea plants?
What is the function of the LM and LN alleles in the human MN blood group system?
What is the function of the LM and LN alleles in the human MN blood group system?
What is the genotype of an individual with the MN blood group?
What is the genotype of an individual with the MN blood group?
What is the probability of an individual being homozygous recessive for a particular gene in a dihybrid cross?
What is the probability of an individual being homozygous recessive for a particular gene in a dihybrid cross?
What is the genotype of an individual that expresses a phenotype resulting from incomplete dominance?
What is the genotype of an individual that expresses a phenotype resulting from incomplete dominance?
Which of the following is an example of a dominant trait present at low frequencies in human populations?
Which of the following is an example of a dominant trait present at low frequencies in human populations?
What is the difference between the M and N blood groups?
What is the difference between the M and N blood groups?
What type of inheritance pattern does pseudoachondroplasia exhibit?
What type of inheritance pattern does pseudoachondroplasia exhibit?
What is the ratio of the amount of gene product in the CR and CW genotypes in the snapdragon plant?
What is the ratio of the amount of gene product in the CR and CW genotypes in the snapdragon plant?
What is the name of the gene associated with pseudoachondroplasia?
What is the name of the gene associated with pseudoachondroplasia?
What is the frequency of people that are recessive homozygotes for the polydactyly trait?
What is the frequency of people that are recessive homozygotes for the polydactyly trait?
What is the probability that Tom and Mary's first child will be affected by the condition, given that both Tom and Mary are carriers (Aa) for the condition?
What is the probability that Tom and Mary's first child will be affected by the condition, given that both Tom and Mary are carriers (Aa) for the condition?
What is the term for the phenomenon where the alleles of one gene segregate independently of another gene’s alleles?
What is the term for the phenomenon where the alleles of one gene segregate independently of another gene’s alleles?
What is the pattern of inheritance exhibited by brachydactyly, a Mendelian trait described in humans?
What is the pattern of inheritance exhibited by brachydactyly, a Mendelian trait described in humans?
What is the term for a gene that, when mutated, causes a single-gene disorder?
What is the term for a gene that, when mutated, causes a single-gene disorder?
What is the name of the geneticist who documented brachydactyly as the first Mendelian trait described in humans?
What is the name of the geneticist who documented brachydactyly as the first Mendelian trait described in humans?
What is the reason for the difference in the expression of oculocutaneous albinism (OCA) between individuals of European and African ancestry?
What is the reason for the difference in the expression of oculocutaneous albinism (OCA) between individuals of European and African ancestry?
What is the genotype of an individual who is a carrier of cystic fibrosis but does not exhibit the disease?
What is the genotype of an individual who is a carrier of cystic fibrosis but does not exhibit the disease?
What is the pattern of inheritance of Huntington's disease?
What is the pattern of inheritance of Huntington's disease?
What is the genotype of an individual who can taste phenylthiocarbamide (PTC)?
What is the genotype of an individual who can taste phenylthiocarbamide (PTC)?
What is the underlying cause of sickle cell anaemia?
What is the underlying cause of sickle cell anaemia?
What is the primary mechanism by which the R allele of the pea shape gene (SBE1) influences the seed shape phenotype?
What is the primary mechanism by which the R allele of the pea shape gene (SBE1) influences the seed shape phenotype?
What is the significance of the heterozygous genotype (Rr) in the context of Mendel's pea plant breeding experiments?
What is the significance of the heterozygous genotype (Rr) in the context of Mendel's pea plant breeding experiments?
What is the relationship between the genotype and phenotype in the context of complete dominance?
What is the relationship between the genotype and phenotype in the context of complete dominance?
What is the practical application of understanding the genotype–phenotype relationship in the context of genetic counselling?
What is the practical application of understanding the genotype–phenotype relationship in the context of genetic counselling?
What is the primary advantage of using the concept of dominance and recessivity in understanding the molecular mechanisms of disease?
What is the primary advantage of using the concept of dominance and recessivity in understanding the molecular mechanisms of disease?
What is the role of the starch branching enzyme 1 (Sbe1) in the context of the pea shape gene (SBE1)?
What is the role of the starch branching enzyme 1 (Sbe1) in the context of the pea shape gene (SBE1)?
What is the significance of the concept of complete dominance in the context of Mendel's laws?
What is the significance of the concept of complete dominance in the context of Mendel's laws?
What is the primary goal of structure–function studies of proteins in the context of genetics and biotechnology?
What is the primary goal of structure–function studies of proteins in the context of genetics and biotechnology?
What is the significance of the R allele in the context of the pea shape gene (SBE1)?
What is the significance of the R allele in the context of the pea shape gene (SBE1)?
What is the primary application of understanding the genotype–phenotype relationship in the context of selective breeding?
What is the primary application of understanding the genotype–phenotype relationship in the context of selective breeding?
