Unit 4

Front

What is mitosis?

Back

Mitosis is the process of cell division that results in two genetically identical daughter cells, each with the same number of chromosomes as the parent cell.

Front

How many chromosomes do fruit fly body cells have?

Back

Fruit fly body cells have 8 chromosomes.

Front

What is a homozygous genotype?

Back

A homozygous genotype has two identical alleles for a particular gene, such as BB or tt.

Front

What does it mean to be lactose tolerant?

Back

Being lactose tolerant means an individual can digest lactose, a sugar found in milk, due to the presence of the enzyme lactase.

Front

What is the role of the male reproductive system in inheritance?

Back

The male reproductive system contributes half of the genetic material (sperm) to the offspring.

Front

What is the role of the female reproductive system in inheritance?

Back

The female reproductive system contributes a complete set of chromosomes (egg) to the offspring.

Front

What is the significance of genetic variation?

Back

Genetic variation is important for evolution and adaptation, allowing populations to survive changing environments.

Front

What is the definition of chromosomes?

Back

Chromosomes are structures within cells that contain DNA and carry genetic information.

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup of an organism, while phenotype is the observable physical traits.

Front

What is the purpose of meiosis?

Back

Meiosis is the process of cell division that produces gametes (sperm and eggs) with half the number of chromosomes.