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The units form the backbone of the DNA.

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Important Questions on Genetics

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10th Tamil Nadu Board
IMPORTANT
Science Standard 10>Chapter 18 - Genetics>TEXTBOOK EVALUATION>Q 6
Okazaki's fragments are joined together by _____.
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10th Tamil Nadu Board
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Science Standard 10>Chapter 18 - Genetics>TEXTBOOK EVALUATION>Q 7
The number of chromosomes found in human beings are:
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10th Tamil Nadu Board
IMPORTANT
Science Standard 10>Chapter 18 - Genetics>TEXTBOOK EVALUATION>Q 8
The loss of one or more chromosome in ploidy is called ______.
 
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10th Tamil Nadu Board
IMPORTANT
Science Standard 10>Chapter 18 - Genetics>TEXTBOOK EVALUATION>Q 2
Physical expression of a gene is called _____.
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10th Tamil Nadu Board
IMPORTANT
Science Standard 10>Chapter 18 - Genetics>TEXTBOOK EVALUATION>Q 3

The thin thread like structures found in the nucleus of each cell are called _____.

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10th Tamil Nadu Board
IMPORTANT
Science Standard 10>Chapter 18 - Genetics>TEXTBOOK EVALUATION>Q 4

DNA consists of two _____ chains.

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10th Tamil Nadu Board
IMPORTANT
Science Standard 10>Chapter 18 - Genetics>TEXTBOOK EVALUATION>Q 5

An inheritable change in the amount or the structure of a gene or a chromosome is called _____.

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10th Tamil Nadu Board
IMPORTANT
Science Standard 10>Chapter 18 - Genetics>TEXTBOOK EVALUATION>Q 1

Identify whether the statement is True or False. Correct the False Statement.

A typical Mendelian dihybrid ratio of F2 Generation is 3 : 1.