2024 Mutations

Which sentence is FALSE?

• All organisms have 23 pairs of DNA.
• Chromosomes are made of genes.
• DNA is made out of 4 chemicals: adenine, cytosine, thymine, guanine
• DNA is the recipe for life.

The traits of an organism are passed to its offspring on small coded strands of DNA material called

• meiosis
• recessive traits
• genes
• heredity

True or False? A tightly wound bundle of DNA is a chromosome.

• False
• True

True or False? The passing of traits from one parent to offspring is heredity.

• False
• True

A _______ is a segment of DNA that controls our traits.

• gene

• gamete

• chromosome

• chromatid

How many chromosomes does a human body cell have, total?

• 48

• 46

• 23

• 47

The 23rd pair of chromosomes that contain the genes to determine the sex of an individual are called ___________.

• sex chromosomes

• autosomes

• homologous

• genes

The 2 female sex chromosomes are ___.

• XY

• XX

The 2 male sex chromsomes are _____.

• XY

• XX

How many chromosomes do we get from each parent?

• 12

• 23

• 46

• 78