Genetics review questions for Phylogeny Lesson

Front

What is homozygous dominant?

Back

An organism with two identical dominant alleles for a trait (e.g., TT, RR).

Front

What does a trait refer to in genetics?

Back

A trait is a physical characteristic of an organism, such as fur color or height.

Front

What is a gene?

Back

A gene is a segment of DNA that codes for a specific protein or trait.

Front

What is the significance of microsatellite data in genetics?

Back

Microsatellite data is used to compare genetic variation among individuals or populations.

Front

What does homozygous recessive mean?

Back

An organism with two identical recessive alleles for a trait (e.g., tt, rr).

Front

What is heterozygous?

Back

An organism with two different alleles for a trait (e.g., Tt, Rr).

Front

What is the role of cytochrome b protein in organisms?

Back

Cytochrome b is involved in the electron transport chain and energy production in cells.

Front

How can DNA sequences help determine evolutionary relationships?

Back

Similarities and differences in DNA sequences can indicate how closely related different species are.

Front

What is the purpose of a phylogenetic tree?

Back

A phylogenetic tree visually represents the evolutionary relationships among various species.

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles mask the effect of recessive alleles in heterozygous individuals.