EASY
10th CBSE
IMPORTANT
Earn 100

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

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Important Questions on Heredity and Evolution

EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 3 Biology>Chapter 4 - Heredity and Evolution>Multiple Choice Questions (MCQs)>Q 55
The number of pair(s) of sex chromosomes in the zygote of humans is
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 3 Biology>Chapter 4 - Heredity and Evolution>Multiple Choice Questions (MCQs)>Q 56
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
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 3 Biology>Chapter 4 - Heredity and Evolution>Multiple Choice Questions (MCQs)>Q 57
The two versions of a trait (character) which are brought in by the male and female gametes are situated on
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 3 Biology>Chapter 4 - Heredity and Evolution>Multiple Choice Questions (MCQs)>Q 58
Select the statements that describe characteristics of genes:
(i) genes are specific sequence of bases in a DNA molecule
(ii) a gene does not code for proteins
(iii) in individuals of a given species, a specific gene is located on a particular chromosome
(iv) each chromosome has only one gene
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 3 Biology>Chapter 4 - Heredity and Evolution>Multiple Choice Questions (MCQs)>Q 59
Select the group which shares the maximum number of common characters:
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 3 Biology>Chapter 4 - Heredity and Evolution>Multiple Choice Questions (MCQs)>Q 60
A trait in an organism is influenced by:
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 3 Biology>Chapter 4 - Heredity and Evolution>Multiple Choice Questions (MCQs)>Q 61
In human males, all the chromosomes are paired perfectly except one. This/these unpaired chromosomes is/are
(i) large chromosome
(ii) small chromosome
(iii) Y chromosome
(iv) X chromosome
MEDIUM
10th CBSE
IMPORTANT
Science for Tenth Class Part - 3 Biology>Chapter 4 - Heredity and Evolution>Multiple Choice Questions (MCQs)>Q 62
The sex of a child is determined by which of the following?