Biology Midterm 24-25

Front

What is a Punnett Square?

Back

A Punnett Square is a diagram used to predict the possible genotype outcomes of a genetic cross between two parents.

Front

What does heterozygous mean?

Back

Heterozygous refers to having two different alleles for a specific gene, such as Bb.

Front

During which phase of the cell cycle does the cell spend the most time?

Back

The cell spends the most time in Interphase.

Front

What is the correct order of the stages of the cell cycle?

Back

The correct order is G1, S, G2, M.

Front

What is the genotype ratio for a Punnett Square with Bb x bb?

Back

The genotype ratio is 2Bb:2bb.

Front

Define genotype.

Back

Genotype is the genetic makeup of an organism, represented by the alleles it possesses.

Front

What is the difference between homozygous and heterozygous?

Back

Homozygous means having two identical alleles for a gene, while heterozygous means having two different alleles.

Front

What occurs during the S phase of the cell cycle?

Back

During the S phase, DNA replication occurs, resulting in two copies of each chromosome.

Front

What is the role of mitosis in the cell cycle?

Back

Mitosis is the process of cell division that results in two identical daughter cells.

Front

What is a phenotype?

Back

Phenotype is the observable physical or biochemical characteristics of an organism, determined by its genotype.