NEET Biology MCQ: NCERT DNA Melting Temperature | NEET.Guide Questions

Which of the following DNA sequences would have the highest melting temperature?

A

ATATATATAT

B

AGCTAGCTAG

C

GCATGCATGC

D

GCGCGCGCGC

Question Tags

📚 Subject:Botany

📑 Chapter:Molecular Basis of Inheritance

🎓 Ncert Level:Application

🎯Difficulty :Hard

⚡ Time Required :1 mins

🔄Ncert Concepts :DNA Structure, Melting Temperature

Related Questions

Which of the following sugars is found in nucleic acid?

A

Glucose

B

Fructose

C

Both ribose and deoxyribose

D

Sucrose

Question Tags

📚 Subject:Botany

📑 Chapter:Molecular Basis of Inheritance

🎓 Ncert Level:Remembering

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :Biochemistry, Nucleic Acids, Sugars, Deoxyribose

Which nitrogenous base is found in DNA but NOT in RNA?

A

Adenine

B

Guanine

C

Cytosine

D

Thymine

Question Tags

📚 Subject:Botany

📑 Chapter:Molecular Basis of Inheritance

🎓 Ncert Level:Remembering

🎯Difficulty :Easy

⚡ Time Required :0.5 mins

🔄Ncert Concepts :DNA, RNA, Nitrogenous bases

The backbone of a DNA strand is formed by:

A

Nitrogenous bases

B

Sugar and phosphate

C

Only sugar

D

Only phosphate

Question Tags

📚 Subject:Botany

📑 Chapter:Molecular Basis of Inheritance

🎓 Ncert Level:Remembering

🎯Difficulty :Easy

⚡ Time Required :0.5 mins

🔄Ncert Concepts :DNA, Structure

Histone octamer contains

A

Eight types of histones

B

Eight histones of four different types

C

Five histones

D

Six types of histones

Question Tags

📚 Subject:Botany

📑 Chapter:Molecular Basis of Inheritance

🎓 Ncert Level:Remembering

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :Histone, Histone Octamer, Nucleosome

Which of the following is in correct w.r.t nucleosides?

A

Cytosine

B

Guanosine

C

Adenosine

D

Uridine

Question Tags

📚 Subject:Botany

📑 Chapter:Molecular Basis of Inheritance

🎓 Ncert Level:Understanding

🎯Difficulty :Easy

⚡ Time Required :2 mins

🔄Ncert Concepts :Nucleosides, Nucleobases, Biochemistry

If a length of DNA has 45,000 base pairs, how many complete turns will the DNA molecule takes?

A

4,500

B

45,000

C

45

D

450

Question Tags

📚 Subject:Botany

📑 Chapter:Molecular Basis of Inheritance

🎓 Ncert Level:Application

🎯Difficulty :Easy

⚡ Time Required :2 mins

🔄Ncert Concepts :DNA structure, base pairs, turns

DNA consists of two complementary nucleotide chains. If the sequence of nucleotides in one of the chains is AGCTTCGA then the complementary sequence of the other chain will be

A

TCGAAGCT

B

TCGTATCG

C

AATTCCGG

D

TCGAACTG

Question Tags

📚 Subject:Botany

📑 Chapter:Molecular Basis of Inheritance

🎓 Ncert Level:Application

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :DNA structure, complementary base pairing

Single stranded DNA is found in

A

Polio viruses

B

Rich dwarf virus

C

TMV

D

$\phi imes 174$

Question Tags

📚 Subject:Botany

📑 Chapter:Molecular Basis of Inheritance

🎓 Ncert Level:Remembering

🎯Difficulty :Easy

⚡ Time Required :2 mins

🔄Ncert Concepts :Viral structure, Nucleic acids, DNA types

Which sugar is present in nucleic acid?

A

Pentose

B

Hexose

C

Fructose

D

Glucose

Question Tags

📚 Subject:Botany

📑 Chapter:Molecular Basis of Inheritance

🎓 Ncert Level:Remembering

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :nucleic acids, monosaccharides, pentose, hexose

The diameter of Z-DNA is

A

34Å

B

20Å

C

18Å

D

45Å

Question Tags

📚 Subject:Botany

📑 Chapter:Molecular Basis of Inheritance

🎓 Ncert Level:Remembering

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :Z-DNA structure, DNA diameter

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