Identical twins are produced when

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4.Principles of Inheritance and Variation

normal

Identical twins are produced when

One fertilized egg divided into 2 blastomeres and both separate

One sperm fertilizes two eggs

One egg fertilized with two sperms

Two eggs are fertilized

Solution

(a)Identical twins are formed when one sperm fertilizes one egg to form a single zygote. They have the same genotype and phenotype and are of same sex.

Standard 12

Biology

Excessive growth of hair on the pinna is a feature found only in males because

normal

Down's syndrome occurs in the ……….. pair of chromosome by increasing a chromosome.

normal

Sex chromosomes of a female bird are represented by

normal

The phenomenon in which an allele of one gene suppresses the activity of an allele of another gene is known as

normal

(AIPMT-1995)

Definitions / Explanation : Epistatic Gene or Inhibitory Gene

normal

Identical twins are produced when

Solution

Similar Questions

Excessive growth of hair on the pinna is a feature found only in males because

Down's syndrome occurs in the ……….. pair of chromosome by increasing a chromosome.

Sex chromosomes of a female bird are represented by

The phenomenon in which an allele of one gene suppresses the activity of an allele of another gene is known as

Definitions / Explanation : Epistatic Gene or Inhibitory Gene

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