Name the following

The cross involvi

Give biological reasons for the following:

The wall of the ventricle is thicker than the auricle.

Name the following:

iv. The cross between two parents having one pair of contrasting characters.

Rewrite and complete the following sentences by inserting the correct word
in the space indicated:

__________ is the scientific name of garden pea, which Mendel used for his
experiments.

Briefly answer the following questions:

v. Mendel's Law of dominance

In a homozygous plant round seeds (R) are dominant over wrinkled seeds (r):

i. Draw a Punnett square to show the gametes and offspring when both the

plants have heterozygous round seeds (Rr).

ii. Mention the Phenotype and Genotype ratios of the offspring in F2 generation.

iii. Name the sex chromosomes in human males and females.

iv. Briefly explain the term ‘Mutation’.

v. What is the number of chromosomes in the gametes of human beings?

Rewrite and complete the following sentences by inserting the correct word in the

(iv) Phenotype is the observable characteristic which is ............ controlled.

Write the difference between the following pairs by following the indications in the

brackets:

Monohybrid and dihybrid cross (phenotypic ratio)

State whether the following statements are true or false. lf false rewrite the correct
form of the statement by changing the first or last word only.

Give one point of difference between the following on the basis of what is given in the brackets:

(iii)Genotype and phenotype (definition)