BIO Q2 Review

In what phase of the cell cycle does DNA replication take place?

• G1

• S

• G2

• Prophase

Why does DNA replicate?

• To create a duplicate copy in case the original gets damaged

• New cells will have a copy of the DNA

• To create a new copy to replace the damaged original

Adenine bonds with _____

• Cytosine

• Thymine

• Guanine

• Uracil

Why is DNA important?

• it is very small and very complicated

• it's in everything

• it serves as the blueprint for traits of all living things

• because we eat it every day for energy

Cytosine bonds with ____

• Adenine

• Thymine

• Guanine

• Uracil

What is needed for DNA replication to unzip at the hydrogen bonds?

• phosphates

• enzymes

• deoxyribose (sugar)

• hydrogen

What is a mutation?

• Adenine

• a change/mistake in DNA

• a copy of the original DNA

• Guanine

What are the 4 nitrogen bases?

• adenine, thymine, cytoplasm, and guanine
• adenine, thymine cytosine, and guanine
• adenine, thymine, cytosine, and gylcerol
• adenine, thymine, cytosine, and glucose

What is the correct complimentary strand for the following DNA?ATCGAG

• TACGAG
• ATCGAG
• TAGCTG
• TAGCTC

During transcription, this type of ribonucleic acid is responsible for copying the DNA and brining it out of the nucleus.

• tRNA

• mRNA

• rRNA

• dRNA