Lesson 32 & 33

Question 1 of 12

1

What is a nucleotide?

Select one of the following:

A molecule that contains one pentose, one phosphate group and two nitrogenous bases
A molecule that contains one ammonium, one phosphate group and two nitrogenous bases
A molecule that contains one pentose, some phosphate groups and one carbonyl group
A molecule that contains one pentose, some phosphate groups and two carbonyl groups
Any of these

Explanation

Question 2 of 12

1

Which of these are purine nitrogenous bases?

Select one of the following:

Cytosine and Uracil
Thymine and Guanine
Adenine and Guanine
Uracil and Thymine
Cytosine and Adenine

Explanation

Question 3 of 12

1

Which is the complementary strand of the sequence GAGCTCU?

Select one of the following:

CTCGAGA
CUCGUGA
AGATCTC
ACATGTG
Any of these

Explanation

Question 4 of 12

1

Which of these nucleotides is found in RNA?

Select one of the following:

cADP
TTP
dCTP
UMP
Any of these

Explanation

Question 5 of 12

1

All the information that humans beings have is in 23 chromosomes

Select one of the following:

True
False

Explanation

Question 6 of 12

1

Which sequence is true?

Select one of the following:

DNA associate with a histone octamer that will be fixed by histone nº1 ---> A nucleosome is formed ----> A chromosome is formed
DNA associate with a histone hexamer that will be fixed by histone nº1 ---> A nucleosome is formed ----> A chromosome is formed
DNA associate with a histone octamer that will be fixed by histone nº8 ---> A nucleosome is formed ----> A chromosome is formed
DNA associate with a histone hexamer that will be fixed by histone nº6 ---> A nucleosome is formed ----> A chromosome is formed
DNA associate with a histone hexamer that will be fixed by histone nº1 ----> A chromosome is formed ---> A nucleosome is formed

Explanation

Question 7 of 12

1

Which RNA is responsible of determine the AA that is going to be in the sequence of the protein?

Select one of the following:

Messenger RNA (mRNA)
Transferase RNA (tRNA)
Ribosomal RNA (rRNA)
Regulatory RNA
RNA

Explanation

Question 8 of 12

1

Replication of DNA takes place after the mitosis is made

Select one of the following:

True
False

Explanation

Question 9 of 12

1

For the DNA replication we need Iron ion, ATP and NADH

Select one of the following:

True
False

Explanation

Question 10 of 12

1

Which molecule binds the Okazaki fragments during replication?

Select one of the following:

Helicases
Topoisomerases
Single strand binding proteins
Nucleases
Ligases

Explanation

Question 11 of 12

1

Which DNA polymerase is involved in the synthesis of primers?

Select one of the following:

DNA polymerase α
DNA polymerase δ
DNA polymerase ε
DNA polymerase ß
DNA polymerase γ

	Created by gyorgycrack almost 9 years ago

Structure of nucleotides and replication of DNA test

Lesson 32 & 33

Question 1 of 12

What is a nucleotide?

Select one of the following:

Explanation

Question 2 of 12

Which of these are purine nitrogenous bases?

Select one of the following:

Explanation

Question 3 of 12

Which is the complementary strand of the sequence GAGCTCU?

Select one of the following:

Explanation

Question 4 of 12

Which of these nucleotides is found in RNA?

Select one of the following:

Explanation

Question 5 of 12

All the information that humans beings have is in 23 chromosomes

Select one of the following:

Explanation

Question 6 of 12

Which sequence is true?

Select one of the following:

Explanation

Question 7 of 12

Which RNA is responsible of determine the AA that is going to be in the sequence of the protein?

Select one of the following:

Explanation

Question 8 of 12

Replication of DNA takes place after the mitosis is made

Select one of the following:

Explanation

Question 9 of 12

For the DNA replication we need Iron ion, ATP and NADH

Select one of the following:

Explanation

Question 10 of 12

Which molecule binds the Okazaki fragments during replication?

Select one of the following:

Explanation

Question 11 of 12

Which DNA polymerase is involved in the synthesis of primers?

Select one of the following:

Explanation

Question 12 of 12

The real copy of DNA is made by DNA polymerase δ

Select one of the following:

Explanation