Heredity and Evolution

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Heredity and Evolution

1 / 15

Which of the following pair of organ is not homologous?

2 / 15

The organs present in two organisms indicate that they are derived from the same ancestor are:

3 / 15

What is the ancient name for all human beings?

4 / 15

What could be the reason for the fossil of an organism to be found in the deeper layers of the earth?

5 / 15

Which is the one characteristic of the parents that can be inherited by their children?

6 / 15

Which of the following determines the sex of a child?

7 / 15

In human males, all the chromosomes are paired perfectly except one. These unpaired chromosomes are:
(i) Large chromosome
(ii) Small chromosome
(iii) Y chromosome
(iv) X chromosome

8 / 15

In peas, a pure tall plant (TT) is crossed with a pure short plant (tt). The ratio of pure tall plants to pure short plants in F2 generation will be:

9 / 15

A cross between a tall plant (TT) and short plant (tt) resulted in progeny that were all tall plants as:

10 / 15

The following results were obtained by a scientist who crossed the F1 generation of pure-breeding parents for round and wrinkled seeds.

Dominants traitRecessive traitNo. of F2 offspring
Round seedsWrinkled seeds7524

From these results, it can be concluded that the actual number of round seeds he obtained was:

11 / 15

What will be the number of chromosomes present in each gamete produced by the plants if the palisade cells of a species of plant contain 28 chromosomes in all?

12 / 15

A pregnant woman has an equal chance of her baby being blood group A or blood group AB. Which one of the following shows the possible genotypes of the woman and the father of her child?

13 / 15

In the human blood grouping, the four basic blood types are type A, type B, type AB, and type O. They are:

14 / 15

If a normal cell of human body contains 46 pairs of chromosomes then the numbers of chromosomes in a sex cell of a human being is most likely to be:

15 / 15

The sequence of gradual changes which takes place in the primitive organisms over millions of years in which new species are produced is known as

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