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Subjects
Science State Board
Class 10
Genetics
Textbook questions
2.
Choose the correct answer II
Exercise condition:
4
m.
1.
The _____________ units form the backbone of the DNA.
Nitrogenous bases
5 carbon sugar
Sugar phosphate
Phosphate
2.
Okasaki fragments are joined together by ____________.
DNA polymerase
DNA ligase
Helicase
RNA primer
3.
The number of chromosomes found in human beings are _________.
22 pairs of autosomes and 1 pair of allosomes
46 autosomes
22 autosomes and 1 allosome
46 pairs autosomes and 1 pair of allosomes
4.
The loss of one or more chromosome in a ploidy is called ________.
Tetraploidy
Polyploidy
Euploidy
Aneuploidy
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