Which one of the following bacterium is used for production of transgenic plants

• Escherichia coli

• Bacillus thuringiensis

• Staphylococcus aureus

• Agrobacterium tumefaciens

Restriction enzymes are used to cut

• single stranded RNA

• double stranded DNA

• single stranded DNA

• double stranded RNA

Name the hormone that has no role in menstruation

• LH

• FSH

• GH

• TSH

The gene of sickle cell anaemia is inherited by

• blood cells

• bone cells

• sex chromosomes

• autosomes

Which one of the following triplet codon is a chain termination codon?

• UGU

• AAU

• UUG

• UAG

66.

How many pairs of contrasting characters in pea pod were chosen by Mendel?

• 3

• 5

• 7

• 9

If a cross between two individuals produces offsprings with 50% dominant character (A) and 50% recessive character (a) the genotype of parents are

• Aa $\times$Aa

• Aa $\times$aa

• AA $\times$aa

• AA $\times$Aa

What will be the codons in mRNA if the DNA codes are ATG - CAG?

• TAC - GTC

• UAC - GUC

• UCA - TUA

• TCA - GTC

Which of the following species is restricted to a specific area?

• Sibling species

• Allopatric species

• Sympatric species

• Endemic species

Which one of the following immunoglobulins is found as pentamer?

• IgG

• IgM

• IgA

• IgE