Heredity And Ev...

Your friend is unable to identify the colours of flowers. What would be the reason?

A. Malfunctioning of rods
B. Malfunctioning of Cones
C. Haemophilia
D. Colour blindness

Choose the correct answer.

Colour blindness is more common in men than in women as

Chromosomes are composed of

Which is the correct statement?

The book 'Origin of Species' belongs to

If a heterozygous tall plant is crossed with a homozygous dwarf plant, the proportion of dwarf progeny will be

Identify the inherited trait from the following.

Which of the following is not a vestigial organ in humans?

Fossil records suggest that birds are closely related to

Identify the type of organs shown in the given diagram.

Which of the following are the methods of dating fossils?

(i) Artificial selection
(ii) Relative method
(iii) Selecting isotopic ratio
(iv) Comparing DNA

'Natural selection' selects individuals who are

There is a population of brown and green beetles. By chance, a person steps on the green beetles and all the green beetles die. This situation explains the phenomenon of

_______ can change their sex during their life.

Which of the following is a homozygous-dominant dihybrid condition?

In a certain plant, purple flowers are dominant to red flowers. If the cross of two purple-flowered plants produces some purple-flowered and some red-flowered plants, what is the genotype of the parent plants?

What is the name of generation given to the plants produced from cross pollination of genetically pure parent plants?

Which of the following traits does not involve reproductive cells?

Speciation cannot occur in groups of individuals that

What do we call the differences in the traits among the individuals of a species?