Which of the following is the correct scientific name of man?

(1) Homo Sapiens
(2) Homo sapien 
(3) Homosapien 
(4) Homo sapiens

A rose plant obtained f rom self cross of het erozygous red has produced 200 f lowers. How many of them would be heterozygous red flowers ?
(1) 25 (2) 50 (3) 100 (4) 150

Phylogeny is the study of one of the following

(1) Development of an individual. 
(2) Evolution of species.
(3) Embryonic development of an organ. 
(4) Ecological adaptation of an organism.

Mendel used a number of contrasting visible characters of garden pea. Which of the following is incorrect pair of contrasting characters ?

(1) Tall/Dwarf ­ - Height of stem
(2) Round / Wrinkled -­ Shape of seed
(3) White / Red ­ - Colour of flower
(4) Yellow / Green ­ - Colour of seed

The sex of a male child is determined by which of the following?

(1) The length of the mother's pregnancy 
(2) The length of time between ovulation and copulation
(3) The presence of an X chromosome 
(4) The presence of a Y chromosome