According to Mendel alleles have the following character

(a)

Pair of genes

(b)

Responsible for character

(c)

Production of gametes

(d)

Recessive factors

Okasaki fragments are joined together by ___________________.

(a)

Helicase

(b)

DNA polymerase

(c)

RNA primer

(d)

DNA ligase

The loss of one or more chromosome in a ploidy is called_____________.

(a)

Tetraploidy

(b)

Aneuploidy

(c)

Euploidy

(d)

Polyploidy

The pairs of contrasting character (traits) of Mendel are called_________.

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Alleles

DNA consists of two ____________ chains.

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polynucleotide

Autosomes

(1)

2n

Diploid condition

(2)

22 pairs of chromosome

Down’s syndrome

(3)

Trisomy 21

Dihybrid ratio

(4)

9:3:3:1

Name the conditions when both the alleles are identical.

What is the name given to the segments of DNA, which are responsible for the inheritance of a particular character?

Name the bond which binds the nucleotides in a DNA.

What are allosomes?

Explain the structure of a chromosome

How is the structure of DNA organised? What is the biological significance of DNA?