DNA & RNA

Which of the following cell parts contains DNA?

• cell membrane

• nucleus

• ribosomes

• endoplasmic reticulum

In DNA, the base ADENINE always pairs with:

• ADENINE

• THYMINE

• GUANINE

• CYTOSINE

If a strand of DNA has a base sequence of C-T-T-A-G-G what would its complementary strand be?

• G-A-A-T-C-C

• C-T-T-A-G-G

• G-G-A-T-T-C

• None of these

The two sides of the DNA ladder are loosely bonded together by:

• magnetism

• plasma

• RNA

• hydrogen bonds

The shape of DNA is often described as a:

• hexagon

• pyramid

• double helix

• pentagon

The sides of the DNA molecule are made up of deoxyribose sugar and:

• adenine

• phosphate groups

• genes

• enzymes

A nucleotide contains...

• a phosphate group

• a sugar

• a base

• all of these

When DNA makes a copy of itself, it’s called:

• replication

• osmosis

• translation

• transmission

Tags

NGSS.HS-LS3-2

Which enzyme separates or “unzips” DNA strands during replication?

• DNA polymerase

• helicase

• RNA polymerase

• ligase

All of the following statements about DNA and RNA are true EXCEPT:

• DNA contains deoxyribose while RNA contains ribose.

• mRNA is larger than DNA.

• RNA can leave the nucleus and DNA cannot.

• RNA contains uracil and DNA does not.