Unit 6 - DNA Structure and Protein Synthesis

Question 0

During what stage of the cell cycle does Replication occur?

Answer 0

The S Phase.

Question 1

Where in the cell does Replication occur?

Answer 1

The Nucleus

Question 2

The sugar in DNA is…

Answer 2

deoxyribose

Question 3

The sugar in RNA is…

Answer 3

ribose

Question 4

Three main differences between RNA and DNA:

Answer 4

I. Dna is double stranded, Rna is single stranded.
II. DNA has Thymine (“T”), RNA has Uracil (“U”).
III. DNA’s sugar is Deoxyribose, RNA’s is Ribose.

Question 5

What is the function of mRNA?

Answer 5

Messenger: to carry information from the nucleus.

Question 6

What is the function of tRNA?

Answer 6

Transport: transports Amino Acids to ribosomes

Question 7

What is the purpose of rRNA?

Answer 7

Ribosomal: assembles Amino Acids.

Question 8

How many Amino Acids are there?

Answer 8

20.

Question 9

What does a codon code for?

Answer 9

Amino Acid.

Question 10

What does a gene code for?

Answer 10

Protein.

Question 11

What is an anti-codon?

Answer 11

It pairs with a codon.

Question 12

Where does translation take place?

Answer 12

Ribosomes in cytoplasm

Question 13

What is a pointshift mutation?

Answer 13

A change in one single DNA base pair. (ATG -> ATT)

Question 14

What is a frameshift mutation?

Answer 14

When a base (allele, letter) is added or deleted.

Question 15

Why is the frameshift mutation more harmful?

Answer 15

Because it throws off the entire pattern instead of just one codon.

Question 16

What is the site of transcription?

Answer 16

Nucleus.