DNA History, Structure and Replication

In a(n) ____________________ mutation, an extra base is added.

• substitution

• insertion

• deletion

______________ always pairs with thymine.

• Cytosine

• Guanine

• Adenine

Mutations are mistakes that become part of ___________________.

• history

• genetic code

• proteins

Tags

NGSS.HS-LS3-2

Check all of the below that are Nitrogen Bases in DNA.

• Adenine

• Guanine

• Cytosine

• Thymine

• Thimosine

Tags

NGSS.HS-LS1-1

Which of the following is a correct base pair in DNA?

• A-G

• A-C

• C-T

• T-A

• G-T

What are the two parts that make up a nucleotide?

• A nitrogen base

• A piece of the DNA backbone (Sugar & Phosphate)

• Sugar

• Phosphate

In the process of DNA replication, which of the following steps must occur first?

• DNA "unzips" between the base pairs

• The DNA sides "rezip" to make two identical DNA strands

• Complementary nucleotides pair up

• mRNA leaves the nucleus

Tags

NGSS.HS-LS1-1

In the process of DNA replication, which of the following steps must occur second?

• DNA "unzips" between the base pairs

• The DNA sides "rezip" to make two identical DNA strands

• Complementary nucleotides pair up

• mRNA leaves the nucleus

In the process of DNA replication, which of the following steps must occur last?

• DNA "unzips" between the base pairs

• The DNA sides "rezip" to make two identical DNA strands

• Complementary nucleotides pair up

• mRNA leaves the nucleus

A specific type of protein is used to control and speed up replication, what is it?

• Hemoglobin

• Antibodies

• Myosin

• Enzymes

Tags

NGSS.HS-LS1-1