Keystone Biology Module 2 Review

Front

What stage of the cell cycle is characterized by the condensation of chromatin into chromosomes?

Back

Prophase.

Front

What is the result of homologous chromosomes exchanging segments during cell division?

Back

A change in gene location will occur on both chromosomes.

Front

How does a mutation most likely affect a population?

Back

Genotypic variation will increase in the population.

Front

Which process results in the production of two genetically identical daughter cells?

Back

Mitosis.

Front

What is the primary purpose of meiosis?

Back

To produce gametes with half the number of chromosomes.

Front

What is an inversion in genetics?

Back

A chromosomal mutation where a segment of a chromosome is reversed end to end.

Front

How does an inversion affect gene expression?

Back

The information in the region is read differently during transcription.

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup, while phenotype refers to the observable traits.

Front

What is the role of homologous chromosomes during meiosis?

Back

They pair up and can exchange genetic material through crossing over.

Front

What is crossing over and when does it occur?

Back

The exchange of genetic material between homologous chromosomes during prophase I of meiosis.