Which of the following statements are correct about Klinefelter’s?
A. This disorder was first described by Langdon Down (1866).
B. Such an individual has overall masculine development. However, the feminine development is also expressed
C. The affected individual is short statured.
D. Physical, psychomotor and mental development is retarded.
E. Such individuals are sterile.
Choose the correct answer from the options given below :

Chromosomal theory of inheritance was proposed by

The number of contrasting characters studied by Mendel for his experiments was

The best example for pleiotropy is:

Match List I with List II

Choose the correct answer from the options given below:

In a plant, black seed color (BB/Bb) is dominant over white seed color (bb). In order
to find out the genotype of the black seed plant, with which of the following genotype
will you cross it?

A pink flowered Snapdragon plant was crossed with a flowered Snapdragon plant. Whattype of phenotype/s is/are expected in the progeny?

Which one of the following can be explained on the basis of Mendel’s Law of Dominance?
A. Out of one pair of factors one is dominant and the other is recessive.
B. Alleles do not show any expression and both the characters appear as such Generation.
C. Factors occur in pairs in normal diploid plants
D. The discrete unit controlling a particular character is called factor.
E. The expression of only one of the parental characters is found in a monohybrid cross.
Choose the correct answer from the options given below.

Match List I with List II :

Choose the correct answer from the options given below:

In is classic experiments on pea plants, Mendel did not use:

Among the following characters, which one was not considered by Mendel in his experiments on pea?