Unit 3 Test 2

Front

What is a disadvantage of cloning?

Back

Cloning reduces genetic variation.

Front

What type of mutation is characterized by an extra chromosome?

Back

Trisomy.

Front

When do chromosomal mutations generally appear?

Back

Suddenly, because of a mistake in mitosis or meiosis.

Front

What is the correct sequence of the cell cycle?

Back

G1 → S → G2 → Mitosis.

Front

How do multiple insertion mutations affect genetic variability?

Back

Yes, because changing the DNA sequence will alter the amino acid sequence that codes for traits.

Front

What is genetic variation?

Back

Genetic variation refers to the differences in DNA sequences among individuals.

Front

What is a point mutation?

Back

A point mutation is a change in a single nucleotide in the DNA sequence.

Front

What is the role of mitosis?

Back

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

Front

What is meiosis?

Back

Meiosis is a type of cell division that reduces the chromosome number by half, producing gametes.

Front

What is a gene translocation?

Back

Gene translocation is a mutation where a segment of DNA is moved from one location to another.