Unit 6 Test Retake: The Human Genome - 3rd Period

Front

What is Red-Green Colorblindness?

Back

An X-linked recessive genetic disorder that affects the ability to distinguish between red and green colors.

Front

What is a Punnett Square used for?

Back

A tool used to predict the probability of inheriting certain traits based on the genetic makeup of the parents.

Front

What does X-linked recessive mean?

Back

A trait that is associated with a gene located on the X chromosome and requires two copies of the allele for females or one copy for males to express the trait.

Front

What is a point mutation?

Back

A change in a single nucleotide in the DNA sequence, which may or may not affect the phenotype.

Front

What is the probability of a son inheriting androgenetic alopecia from a mother with the trait and a father without it?

Back

100% chance of inheriting the trait if the mother carries the recessive allele.

Front

What are the possible blood types of children from a Type AB mother and a Type A father (I^Ai)?

Back

Children can have Type A, Type B, or Type AB blood, but not Type O.

Front

What happens during metaphase in cell division?

Back

Chromosomes align at the cell's equatorial plane, preparing for separation.

Front

What is the role of spindle fibers in cell division?

Back

Spindle fibers help separate chromosomes during mitosis by attaching to the centromeres.

Front

What occurs if spindle fibers do not form?

Back

Mitotic division stops in metaphase and cannot proceed to anaphase.

Front

What is the significance of the dominant allele in genetics?

Back

A dominant allele masks the effect of a recessive allele in a heterozygous genotype.