Unit 4: Genetic Review

What are the sides of a DNA molecule made up of?

• phosphates

• nitrogen bases

• sugars

• sugars and phosphates

The result of meiosis will be which of the following?

• 2 identical diploid somatic cells

• 4 unique haploid gametes

In what phase of meiosis does crossing over occur?

• prophase 1

• prophase 2

• metaphase 1

What is the actual fusion of an egg and sperm to form a zygote called?

• DNA replication

• meiosis

• fertilization

True or False. Sexual reproduction can't happen without meiosis.

• True

• False

I am identical to all the other cells like me that form after cell division

• somatic

• gametes

In humans, I have 22 autosomes and 1 sex chromosome.

• somatic cells

• gametes

Looking at this karyotype, what biological sex will this person have?

• male

• female

What is the name of the diagram that shows the number and visual appearance of the chromosomes in a cell?

• gametes

• haploid

• karyotype

• radiotype

Replicate the following DNA strand using complementary base pairs. Capital letters only with no spaces.

AATACG