Tag: molecular basis of inheritance

Questions Related to molecular basis of inheritance

Number of genes present in human genome is about

zoology molecular basis of inheritance genome projects human genome project human genome project and dna fingerprinting

  1. 15,000

  2. 21,000

  3. 27,000

  4. 30,000

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Correct Option: B
Explanation:
A gene is a distinct sequence of nucleotides forming part of a chromosome.
Most of the genes do not code for proteins. In humans, genes vary in size from a few hundred DNA bases to more than 2 million bases. The Human Genome Project estimated that humans have around 21,000 genes.
So, the correct option is '21,000'.

A ribotide is made of

zoology molecular basis of inheritance genome projects human genome project human genome project and dna fingerprinting

  1. Adenine + Deoxyribose + Phosphate

  2. Uracil + Ribose + Phosphate

  3. Thymine + Ribose + Phosphate

  4. Uracil + Deoxyribose + Phosphate

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Correct Option: B

Which is false ? 

zoology molecular basis of inheritance genome projects human genome project human genome project and dna fingerprinting

  1. A/T is one

  2. A + G = C + T

  3. C/G is one

  4. A + T = C + G

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Correct Option: B

Which ones are degenerate codons ?

zoology molecular basis of inheritance genome projects human genome project human genome project and dna fingerprinting

  1. UAA, UAG and UGA

  2. GUA, GUG, GCA, GCG and GAA

  3. UUC, UUG, CCU, CAA and CUA

  4. UUA, UUG, CUU, CUC, CUA and CUG

  5. AAC, AAG, GAC and CGG

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Correct Option: D

Condensation product of adenine, ribose and phosphoric acid is

zoology molecular basis of inheritance genome projects human genome project human genome project and dna fingerprinting

  1. Adenylic acid

  2. Adenine phosphate

  3. Adenosine

  4. None of the above

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Correct Option: A

Number of histone molecules in each nucleosome core is

zoology molecular basis of inheritance genome projects human genome project human genome project and dna fingerprinting

  1. 14

  2. 12

  3. 10

  4. 8

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Correct Option: D

If the codon GGU is reversed, the resulting codon will code for amino acid

zoology molecular basis of inheritance genome projects human genome project human genome project and dna fingerprinting

  1. Tyr

  2. Trp

  3. Leu

  4. Thr

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Correct Option: B

Choose the wrong statement regarding the observation drawn from Human Genome Project

zoology molecular basis of inheritance genome projects human genome project human genome project and dna fingerprinting

  1. Repetitive sequences are stretches of RNA

  2. Less than 2% of the genome codes for protein

  3. Chromosome Y has the fewest number of genes

  4. SNPs help in tracing human history

  5. Repetive sequences make up a very large portion of the human genome

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Correct Option: A

How many sense codons code for 20 human essential amino acids

zoology molecular basis of inheritance genome projects human genome project human genome project and dna fingerprinting

  1. 61

  2. 62

  3. 63

  4. 64

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Correct Option: A

Human genome project (HGP) was initiated in

zoology molecular basis of inheritance genome projects human genome project human genome project and dna fingerprinting

  1. 1988

  2. 1990

  3. 1992

  4. 1994

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Correct Option: B