Heredity and Evolution MCQ Questions Class 10 Science Chapter 9
NCERT MCQ Questions for Class 10 Science Chapter 9 Heredity and Evolution. Heredity and Evolution MCQ Questions with Answers from Class 10 Science.
Heredity and Evolution MCQ Questions Class 10 Science Chapter 9
Heredity and Evolution Multiple Choice Questions with Answers Class 10 Science Chapter 9 PDF is available.
1.) study of genes called as ———–.
(a) Cytology (b) Heredity (c) Genetics (d) variation.
Answer: C. All the genes can be studied in the field of genetics.
2.) The ——– is the basic unit of heredity.
(a) Trait (b) Allele (c) Gene (d) Cell
Answer: C. Genes pass on from one generation to the next.
3) The characteristics which will express in offspring even in presence of recessive traits are called as :
(a) Inherited (b) Dominant (c) Genetical (d) Acquired
Answer: B. They will always express.
4.) The characters which are suppressed due to presence of dominant characters are called as——
(a) Inherited (b) Recessive (c) Genetical (d) Acquired
Answer: B. They are generally not express when dominant character is present.
5.) Transmission of characteristics from one generation to the next generation.
(a) Variation (b) Heredity (c) Genetics (d)Trait
Answer: B. Heredity is the term used for passing of characters.
6.) ———- can be defined as particular characteristics of living organisms.
(a) Trait (b) Allele (c) Gene (d) Cell
Answer: A. Because others are not characteristics they are part of cell itself.
7.) Mendel selected ——- plant for his experiment.
(a) Pea (b) Mango (c) Neem (d) Rose
Answer: A. pea because it has short life span.
8.) Mendel used ——— characteristics of pea plant.
(a) Six (b) Seven (c) Eight (d) Nine
Answer: B, Seven as height, color, stem color, position of a flower like this seven contrasting feature.
9.) The external characters of living organisms called ————.
(a) Phenotype (b) Genotype (c) Genetic makeup (d) Allele
Answer: A, they are called as observable characters.
10.) The alternative form of a gene called as——–.
(a) Cell (b) Gene (c) Locus (d) Allele
Answer: D, it is responsible for specific characters.
In case you are missed :- Previous Chapter MCQ Questions
11.) The alternative form of a gene called as allele and to decide the position of allele called as —.
(a) Locus (b) Cell (c) Trait (d) None of these.
Answer: A, to determine position of a gene on chromosome.
12.) A cross between two organisms which having variation in trait and both the organisms having homozygous condition called as———-.
(a) Monohybrid cross (b) Dihybrid cross (c) Single cross (d) Double cross
Answer: A. In this only one character involved.
13.) The cross which involves two contrasting pairs in both the parents.
(a) Monohybrid cross (b) Dihybrid cross (c) Single cross (d) Double cross
Answer: B, as two characters are involved.
14.) ——— can be defined as a fluid connective tissue.
(a) Blood (b) Cell (c) Lymph (d) All of these.
Answer: A, Others are not tissue they are cells.
15.) Blood is made up of 2 types of components such as ————- and cells of blood.
(a) Cells (b) Tissue (c) Blood plasma (d) RBC.
Answer: C, Others are components of organs and RBC present in cells of blood.
16.) The —– blood group called as universal donor.
(a) A (b) B (c) AB (d) O.
Answer: D, O blood group don’t have an antibody.
17.) —— blood group called as universal acceptor.
(a) A (b) B (c) AB (d) O.
Answer: C, because it has A and B both antibodies.
18.) An ———– can be defined as the characteristics which are not under genetic control.
(a) acquired traits (b) Inherited traits (c) Trait (d) allele
Answer: A, the characters which living organisms learn during life.
19.) ———– can be defined as the characteristics which are passing from one generation to the next generation that is from parents to their progeny.
(a) acquired traits (b) Inherited traits (c) Trait (d) allele
Answer: B, The genes will pass from one generation to another, therefore they are inheriting.
20.) ———— can be defined as the permanent and gradual changes in the genetic material or genome of an organisms.
(a) Ecology (b) Genetics (c) Variation (d) Evolution
Answer: D, evolution is slow and time taking permanent process.
21.) ——— proposed the theory natural selection.
(a) Mendel (b) Lamarck (c) Darwin (d) None of these.
Answer: C, as other scientist not involved in concept of natural selection.
22.) All are the postulates of Darwin except :
(a) Over production (b) Variation (c) Origin of new species (d) Increase in organ size.
Answer: D. Because increase in organ size is postulate of other scientist.
In case you are missed :- Next Chapter MCQ Questions
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