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Molecular Basis Of Inheritance

Question
CBSEENBI12003072
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Match the following column I with column II.

Column I Column II
A. Carcinogen 1. Cancerous Tumour
B. Anaphase -I 2. Disjunction
C. Mitosis 3. Synapse
D. Zygotene 4. Plectonemic Coiling

  • A-1, B-2, C-4, D-3

  • A-3, B-1, C-4, D-2

  • A-2, B-3, C-1, D-4

  • A-4, B-1, C-3, D-2

Solution

A.

A-1, B-2, C-4, D-3

Carcinogen causes cancerous tumour disjunction of chromosomes takes place in anaphase I and II when chromosomes move to the opposite poles of the cell.

Plectonemic coiling refers to inter-twining of a double helix DNA molecule in such a way that for its correction unwinding of DNA helix molecule is required, this take place in mitosis in which sister chromatids are tightly coiled upon each other. In the zygotene stage, homologs login to synapse by coming to approximate alignment.

Some More Questions From Molecular Basis of Inheritance Chapter

List the number of base pairs in :

(i) lambda bacteriophage

(ii) E.coli and

(iii) haploid content of human DNA.

Comment two chains of DNA have antiparallel polarity.

What is the difference between DNAs and DNAase ?

Which was first genetic material ?

Suggest one evidence to prove that RNA was first genetic material.

Why was RNA unstable ?

What made DNA more preferrable as genetic material ?

Process of replication is completed in how much time in E.coli ?

What is average rate of polymerization ?

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