Match the following: Disorder Reason A) Thalassemia B) Haemophilia C) Sickle cell anaemia D) Alkaptonuria I) Point mutation II) Autosomal recessive metabolic disorder III) Abnormal haemoglobin IV) Non-disjunction of chromosomes V) Sex-linked recessive disorder The correct match is:

A = III , B = V , C = I , D = II

A = III , B = IV , C = I , D = II

A = II , B = I , C = V , D = III

A = IV , B = III , C = II , D = I

Assertion (A) : If the allele produces a less functional enzyme or non-functional enzyme the phenotype may be affected. Reason (R) : The phenotype trait will not be dependent on the functioning of the unmodified allele. The correct option among the following is:

(A) is true, (R) is true and (R) is the correct explanation for (A)

(A) is true, (R) is true but (R) is not the correct explanation for (A)

Assertion (A): In human beings, the sex of the offspring depends on the type of sperm that fertilizes the ovum Reason (R): Human males are heterogametic The correct option among the following is

(A) is true, (R) is true and (R) is the correct explanation for (A)

(A) is true, (R) is true, but (R) is not the correct explanation for (A)

MEDIUM

TS EAMCET

IMPORTANT

Earn 100

Match the following lists:

List - I List - II

(A) Back cross It is the genetic make up of an individual.

(B) Test cross (II) An individual is having two different alleles for a single character. Consequently, it will produce two different types of gametes with reference to a gene.

(C) Heterozygote (III) An individual is having two similar or identical alleles for a single character. Hence, it will produce only one kind of gametes with reference to a gene.

(D) Homozygote (IV) If the $F_{1}$ progeny are mated back to one of their parents.

(V) The cross between $F_{1}$ progeny (or heterozygotes) and their recessive homozygous parent.

The correct match is:

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Important Questions on Principles of Inheritance and Variation

MEDIUM

TS EAMCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 19 - Principles of Inheritance and Variation>TS EAMCET Medical 2018 (02 May Shift-1)>Q 2

What is the possible genotypic ratio in

F_{2}

generation if a plant producing red flowers

(RR)

is crossed with another plant of the same species that produces white flowers

(rr) ?

EASY

TS EAMCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 19 - Principles of Inheritance and Variation>TS EAMCET Medical 2021 (9-Aug Shift-1)>Q 3

Identify the scientists who rediscovered the Mendel's result on the inheritance of characters.

A) de Vries
B) Morgan
C) von Tschermak
D) Sutton

MEDIUM

TS EAMCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 19 - Principles of Inheritance and Variation>TS EAMCET Medical 2021 (9-Aug Shift-1)>Q 4

The ratio of long-winged and vestigial winged Drosophila are formed when a pure long-winged (dominant) and a pure vestigial winged (recessive) Drosophila are crossed:

MEDIUM

TS EAMCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 19 - Principles of Inheritance and Variation>TS EAMCET - 9 August 2021 Shift 2>Q 5

Assertion (A): Two copies of the gene are the two allelic forms of which, one allele produces a non-functional enzyme.
Reason (R): The modified allele is generally the recessive allele.
The correct option among the following is:

MEDIUM

TS EAMCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 19 - Principles of Inheritance and Variation>TS EAMCET - 10 August 2021 Shift 1>Q 6

Identify the behavior of genes among the following.
A) Segregate at gamete formation, only one of each pair is transmitted to a gamete
B) Independent pairs segregate independently
C) Genes will not be modified at any time
D) Starch synthesis in pea seeds is not controlled by one gene

EASY

TS EAMCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 19 - Principles of Inheritance and Variation>TS EAMCET 2020 (28-Sep Shift-1)>Q 7

If both parents have AB group, this blood group is not expected in their children.

EASY

TS EAMCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 19 - Principles of Inheritance and Variation>TS EAMCET Medical 2019 (8-May Shift-2)>Q 8

In a cross between true-breeding (homozygous) red-flowered and true-breeding (homozygous) white flowered plants, the

F_{1}

progeny was pink. The phenotypic and genotypic ratios in

F_{2}

progency were

1 : 2 : 1

. This is because of:

EASY

TS EAMCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 19 - Principles of Inheritance and Variation>TS EAMCET Medical 2019 (8-May Shift-2)>Q 9

The phenomenon where more than two alleles exist in a population of an organism at the same locus on the homologous chromosomes is known as

	List - I		List - II
(A)	Back cross		It is the genetic make up of an individual.
(B)	Test cross	(II)	An individual is having two different alleles for a single character. Consequently, it will produce two different types of gametes with reference to a gene.
(C)	Heterozygote	(III)	An individual is having two similar or identical alleles for a single character. Hence, it will produce only one kind of gametes with reference to a gene.
(D)	Homozygote	(IV)	If the $F_{1}$ progeny are mated back to one of their parents.
		(V)	The cross between $F_{1}$ progeny (or heterozygotes) and their recessive homozygous parent.

Important Questions on Principles of Inheritance and Variation

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