161.

Exine of pollen grain is made up o

• pectocellulose

• lignocellulose

• sporopollenin

• pollen kit

Seedless banana is

• parthenocarpic fruit

• multiple fruit

• drupe fruit

• true fruit

Ovule integument gets transformed into

• seed

• fruit wall

• seed coat

• cotyledons

Sporopollenin is chemically

• homopolysaccharide

• fatty substance

• protein

• heteropolysaccharide

During replication of DNA, Okazaki fragments are formed in the direction of

• 3' ➔ 5'

• 5' ➔ 3'

• 5'➔5'

• 3' ➔ 3'

If you want to develop hybrid seeds within a bisexual flower, the following part needs to be removed from the same flower

• stigma

• ovary

• anther

• oviduct

Xenogamy is essentially a type of

• cleistogamy

• allogamy

• autogamy

• homogamy

Megasporangium is equivalent to

• embryo sac

• fruit

• nucellus

• ovule

Seed coat is not thin, membranous in

• maize

• coconut

• groundnut

• gram

Which one of the following statement is correct?

• Hard outer layer of pollen is called intine

• Sporogenous tissue is haploid

• Endothecium produces the microspores

• Tapetum nourishes the developing pollen