Question 1

Which of thfollowing molecules arNOT founin ribosomes?

Accepted Answer

Lipids are not found in ribosomes. Ribosomes are composed of RNA and proteins.

Question 2

Therarhow many different kinds of amino acids in proteins?

Accepted Answer

Proteins are made up of 20 different kinds of amino acids.

Question 3

Of all thdifferent codons that exist, threof them

Accepted Answer

The answer of Of all thdifferent codons that exist, threof...

Question 4

Therarhow many different kinds of RNA nucleotides?

Accepted Answer

RNA nucleotides are adenine, cytosine, guanine, and uracil.

Question 5

Thtransfer RNA differs froother types of RNA becausit

Accepted Answer

tRNA carries an amino acid at one end, which is its primary role in protein synthesis, distinguishing it from other types of RNA.

Question 6

If thcodon consisteof only 2 nucleotides therwoulbhow many possiblcodons?

Accepted Answer

Each nucleotide can be one of 4 types (A, U, C, G), so with 2 nucleotides, there are 4^2 = 16 possible combinations.

Question 7

Each "word" in thmRNA languagconsists of how many letters?

Accepted Answer

Each "word" in mRNA, known as a codon, consists of three nucleotides or letters.

Question 8

A ribosomcontains

Accepted Answer

Ribosomes are composed of RNA and proteins, specifically ribosomal RNA (rRNA) and ribosomal proteins. They do not contain DNA.

Question 9

Thgenetic code

Accepted Answer

The genetic code is universal for all organisms, is based upon 64 codons made of sequences of three nucleotides, also comes equipped with stop codons, and is redundant; that is, most amino acids have more than one codon.

Question 10

Thgenetic codis madup of units consisting of how many nucleotides?

Accepted Answer

The genetic code is made up of codons, which are sequences of three nucleotides. Each codon specifies an amino acid or a stop signal during protein synthesis.

Question 11

Which of thfollowing carries amino acids to ribosomes?

Accepted Answer

tRNA carries amino acids to ribosomes.

Question 12

Therarhow many different kinds of RNA codons?

Accepted Answer

There are 64 different RNA codons, as each codon consists of three nucleotides and there are four possible nucleotides (A, U, C, G), leading to 4^3 = 64 combinations.

Question 13

If each nucleotidcodes for a singlamino acid, how many different types of amino acids coulbcombineto forproteins?

Accepted Answer

Each nucleotide can code for one amino acid, and since there are 4 different nucleotides, there would be 4 different types of amino acids possible.

Question 14

Examine the following figure and answer questions 
 
-Thstart codon of RNA is

Accepted Answer

The start codon for RNA is AUG, which codes for the amino acid methionine and signals the start of protein synthesis.

Question 15

Eukaryotic ribosomes function as

Accepted Answer

Eukaryotic ribosomes function as two-part units, consisting of a large subunit and a small subunit. The large subunit is responsible for catalyzing peptide bond formation, while the small subunit is responsible for decoding mRNA and selecting appropriate tRNAs.

Question 16

Examine the following figure and answer questions 
 
-Stran# 2 represents

Accepted Answer

Stran# 2 typically refers to the non-coding DNA strand, also known as the template strand, which is used as a template for RNA synthesis during transcription.

Question 17

Examine the following figure and answer questions 
 
-In this representation of transcription, stran# __________ is __________ becausit __________.

Accepted Answer

Strand 3 is RNA because it contains uracil, which is a characteristic base found in RNA instead of thymine, which is found in DNA.

Question 18

Thconcept that a set of threnucleotides specifies a particular amino aciprovides thbasis for

Accepted Answer

The concept that a set of three nucleotides (a codon) specifies a particular amino acid is the basis for the genetic code, which is the system that translates nucleotide sequences into amino acid sequences in proteins.

Question 19

In most species, all mRNA transcripts begin with

Accepted Answer

AUG is the start codon, which signals the ribosome to begin translation and recruit the initiator tRNA bearing methionine.

Question 20

Examine the following figure and answer questions 
 
-Stran# 1 represents

Accepted Answer

The answer of Examine the following figure and answer questions...

Quiz 7: Gene Expression and Control

Which of thfollowing molecules arNOT founin ribosomes?

Therarhow many different kinds of amino acids in proteins?

Of all thdifferent codons that exist, threof them

Therarhow many different kinds of RNA nucleotides?

Thtransfer RNA differs froother types of RNA becausit

If thcodon consisteof only 2 nucleotides therwoulbhow many possiblcodons?

Each "word" in thmRNA languagconsists of how many letters?

A ribosomcontains

Thgenetic code

Thgenetic codis madup of units consisting of how many nucleotides?

Which of thfollowing carries amino acids to ribosomes?

Therarhow many different kinds of RNA codons?

If each nucleotidcodes for a singlamino acid, how many different types of amino acids coulbcombineto forproteins?

Examine the following figure and answer questions -Thstart codon of RNA is

Eukaryotic ribosomes function as

Examine the following figure and answer questions -Stran# 2 represents

Examine the following figure and answer questions -In this representation of transcription, stran# is becausit __.

Thconcept that a set of threnucleotides specifies a particular amino aciprovides thbasis for

In most species, all mRNA transcripts begin with

Examine the following figure and answer questions -Stran# 1 represents

Quiz 7: Gene Expression and Control

Which of thfollowing molecules arNOT founin ribosomes?

Therarhow many different kinds of amino acids in proteins?

Of all thdifferent codons that exist, threof them

Therarhow many different kinds of RNA nucleotides?

Thtransfer RNA differs froother types of RNA becausit

If thcodon consisteof only 2 nucleotides therwoulbhow many possiblcodons?

Each "word" in thmRNA languagconsists of how many letters?

A ribosomcontains

Thgenetic code

Thgenetic codis madup of units consisting of how many nucleotides?

Which of thfollowing carries amino acids to ribosomes?

Therarhow many different kinds of RNA codons?

If each nucleotidcodes for a singlamino acid, how many different types of amino acids coulbcombineto forproteins?

Examine the following figure and answer questions -Thstart codon of RNA is

Eukaryotic ribosomes function as

Examine the following figure and answer questions -Stran# 2 represents

Examine the following figure and answer questions -In this representation of transcription, stran# __________ is __________ becausit __________.

Thconcept that a set of threnucleotides specifies a particular amino aciprovides thbasis for

In most species, all mRNA transcripts begin with

Examine the following figure and answer questions -Stran# 1 represents

Examine the following figure and answer questions -In this representation of transcription, stran# is becausit __.