Question 1

Genetic information of eukaryotic cells is transferred from the nucleus to the cytoplasm in the form of...

Accepted Answer

RNA

Answer

Carbohydrates

Answer

DNA

Answer

Proteins

Question 2

Which is true?

Accepted Answer

Each amino acid in a protein is coded for by three bases in the DNA.

Answer

It takes three genes to code for one protein.

Answer

Each DNA base codes for three amino acids.

Answer

Each gene codes for three proteins.

Question 3

When RNA is being made, the RNA base __________ always pairs with the base __________ in DNA.

Accepted Answer

U;A

Answer

G;T

Answer

A;U

Answer

T;G

Question 4

Bacteria can transcribe and translate human genes to produce functional human proteins because __________.

Accepted Answer

the genetic code is nearly universal

Answer

eukaryotes do not really need a nucleus

Answer

bacterial and eukaryotic RNA polymerases are identical

Answer

bacterial ribosomes and eukaryotic ribosomes are identical

Question 5

In a eukaryotic cell, transcription takes place __________.

Accepted Answer

in the nucleus

Answer

in the cytoplasm

Answer

in the rough endoplasmic reticulum

Answer

on the cell membrane

Question 6

In eukaryotes, which mechanism operates after transcription, but before translation of mRNA into protein?

Accepted Answer

RNA splicing

Answer

Action of repressors and activators

Answer

Construction of a transcription initiation complex

Answer

DNA packaging into nucleosomes

Question 7

Which statement correctly describes mRNA processing?

Accepted Answer

Introns are cut out of the primary transcript, and the resulting exons are spliced together.

Answer

Exons are cut out of the primary transcript and transported to the endoplasmic reticulum.

Answer

Introns are cut out of the primary transcript and spliced together at the end of the transcript.

Answer

Exons are cut out of the primary transcript, and the introns are spliced together.

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