Explanation

The gene responsible for the ABO blood group system is I.

This gene exists in three allelic forms - IA, IB, and i. IA and IB are dominant alleles and i is the recessive allele.

Since three alleles for the ABO blood group are found in a population, it is an example of multiple alleles.

Explanation

Pentane is an organic compound with the formula C5H12—that is, an alkane with five carbon atoms.

Pentane has three isomers i.e; pentane, 2-methyl butane and 2,2-dimethyl propane .

The b.p of pentane is 309.1K whereas 2,2-dimethyl propane shows a b.p of 282.5k.

The three structural isomers of pentane are n-pentane, isopentane, and neopentane.

Explanation

Clay is a poor conductor of heat as compared to wood and bricks.

Therefore, clay neither allows the external heat to enter the house in summer nor allows the internal heat to escape in winter.

Hence, mud houses remain colder in summer and warmer in winter.

Explanation

The cell wall is a characteristic structure of fungi and is composed mainly of:

glucans, chitin, and glycoproteins

**

ND17-1-2023

Explanation

Explanation

Explanation

Explanation

Explanation

Acetone has a ketone functional group and propanal has an aldehyde functional group therefore, these are functional isomers.

Explanation

In organisms such as grasshoppers, crickets, and other insects

The female sex is heterogametic i.e. XX.

The male sex is homogametic i.e. XO.

In males, the gametes produced have an X chromosome and the other gamete is without any chromosome O.

This is an XX-XO sex-determination system in grasshoppers.