Question

1. Transcription occurs in the
a. Nucleus.
b. Ribosomes of the Rough Endoplasmic Reticulum.
c. Mitochondrion.
d. Cell membrane.
e. Smooth Endoplasmic Reticulum.

2. The monomers of DNA and RNA are
a. amino acids.
b. monosaccharides.
c. nucleotides.
d. fatty acids.
e. nucleic acids.

3. Which of the following statements regarding DNA is false?
a. DNA uses the nitrogenous base uracil.
b. DNA is a nucleic acid.
c. One DNA molecule can include four different nucleotides in its structure.
d. DNA uses the nitrogenous base thymine.
e. DNA molecules have a sugar-phosphate backbone.

4. Which of the following options best depicts the flow of information when a gene directs the synthesis of a cellular component (transcription and translation)?
a. DNA → mRNA → protein
b. mRNA → DNA → protein
c. protein → mRNA → DNA
d. mRNA → protein → DNA
e. DNA → protein → mRNA

5. Experiments have demonstrated that the “words” of the genetic code (that are transcribed into codons) are
a. single nucleotides.
b. two-nucleotide sequences.
c. three-nucleotide sequences.
d. nucleotide sequences of various lengths.
e. enzymes.  

6. Which of the following takes place during translation?
a. translate info from mRNA to a protein.
b. translate info from DNA to mRNA.
c. translate info from DNA to tRNA.
d. translate info from proteins to enzymes.
e. DNA replication.

Answer 1

QUESTION-1

ANSWER

Transcription occurs in the

a. Nucleus.

QUESTION-2

ANSWER

The monomers of DNA and RNA are

c. nucleotides.

QUESTION-3

ANSWER

The following statements regarding DNA is false

a. DNA uses the nitrogenous base uracil.

QUESTION-4

ANSWER

The following options best depicts the flow of information when a gene directs the synthesis of a cellular component (transcription and translation)

a. DNA → mRNA → protein

QUESTION-5

ANSWER

Experiments have demonstrated that the “words” of the genetic code (that are transcribed into codons) are

c. three-nucleotide sequences.

QUESTION-6

ANSWER

The following takes place during translation

a. translate info from mRNA to a protein.

EXPLANATION

Replication is the process in which DNA makes its own copy.

Transcription is the process in which RNA is made from the DNA in the nucleus.

Translation is the process in which protein is made from RNA in the cytoplasm.

Genetic code is a three-nucleotide sequence.

The monomer for DNA and RNA is nucleotides.

Nucleotides are of five types-

• Adenine
• Guanine
• Thymine
• Cytosine
• Uracil

Adenine, guanine, thymine and cytosine are found in DNA while uracil is present in RNA instead of thymine.

GOOD LUCK!!!!!