Questions from Genetics

Q: Your textbook describes how the detrimental symptoms associated with the disease phenylketonuria

Your textbook describes how the detrimental symptoms associated with the disease phenylketonuria (PKU) are caused by a faulty gene. Even so, a change in diet can prevent these symptoms. Pick a trait i...

Q: What is meant by the term diploid? Which cells of the

What is meant by the term diploid? Which cells of the human body are diploid, and which cells are not?

Q: Why did Mendel’s work refute the idea of blending inheritance?

Why did Mendel’s work refute the idea of blending inheritance?

Q: A cross is made between a pea plant that has constricted pods

A cross is made between a pea plant that has constricted pods (a recessive trait; smooth is dominant) and is heterozygous for seed color (yellow is dominant to green) and a plant that is heterozygous...

Q: A pea plant that is heterozygous with regard to seed color (

A pea plant that is heterozygous with regard to seed color (yellow is dominant to green) is allowed to self-fertilize. What are the predicted outcomes of genotypes and phenotypes of the offspring?

Q: Describe the significance of nonparentals with regard to the law of independent

Describe the significance of nonparentals with regard to the law of independent assortment. In other words, explain how the appearance of nonparentals refutes a linkage hypothesis.

Q: For the following pedigrees, describe what you think is the most

For the following pedigrees, describe what you think is the most likely inheritance pattern (dominant versus recessive). Explain your reasoning. Filled (black) symbols indicate affected individuals....

Q: Are all of the cell nuclei in the embryo sac haploid or

Are all of the cell nuclei in the embryo sac haploid or is just the egg haploid?

Q: Ectrodactyly, also known as “lobster claw syndrome,” is a

Ectrodactyly, also known as “lobster claw syndrome,” is a recessive disorder in humans. If a phenotypically unaffected couple produces an affected offspring, what are the following probabilities? A....

Q: Identical twins are produced from the same sperm and egg (which

Identical twins are produced from the same sperm and egg (which splits after the first mitotic division), whereas fraternal twins are produced from separate sperm and separate egg cells. If two parent...