Test: Heredity & Variation

Test: Heredity & Variation

Test Description

15 Questions MCQ Test Science & Technology for UPSC CSE | Test: Heredity & Variation

Test: Heredity & Variation for Class 10 2022 is part of Science & Technology for UPSC CSE preparation. The Test: Heredity & Variation questions and answers have been prepared according to the Class 10 exam syllabus.The Test: Heredity & Variation MCQs are made for Class 10 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Heredity & Variation below.
Solutions of Test: Heredity & Variation questions in English are available as part of our Science & Technology for UPSC CSE for Class 10 & Test: Heredity & Variation solutions in Hindi for Science & Technology for UPSC CSE course. Download more important topics, notes, lectures and mock test series for Class 10 Exam by signing up for free. Attempt Test: Heredity & Variation | 15 questions in 10 minutes | Mock test for Class 10 preparation | Free important questions MCQ to study Science & Technology for UPSC CSE for Class 10 Exam | Download free PDF with solutions
 1 Crore+ students have signed up on EduRev. Have you?
Test: Heredity & Variation - Question 1

Which of the following statement is incorrect ?

Detailed Solution for Test: Heredity & Variation - Question 1

Fat biosynthesis occurs through metabolic reaction.

Test: Heredity & Variation - Question 2

Grain colour in wheat is determined by three pairs of polygene. Following the cross AABBCC (dark colour) x aabbcc (light colour), in F2-generation what proportion of the progeny is likely to resemble either parent

Detailed Solution for Test: Heredity & Variation - Question 2

Polygene results in quantitative inheritance which is characterized by occurrence of intermediate forms between the parental type. In case of crossing between AABBCC (dark colour) and aabbcc (light colour), in F2 generation seven phenotypes will obtain with ratio of 1 : 6 : 15 : 20 : 15 : 6 : 1. The total number of progeny is 64, out of which only two will be likely resemble with either parents. Hence, their proportion in F2 generation would be 3.12 ie, less than 5%.

Test: Heredity & Variation - Question 3

The traits which are expressed in first filial (F1) generation are known as which traits.​

Detailed Solution for Test: Heredity & Variation - Question 3

One parent is homozygous for one allele, and the other parent is homozygous for the other allele. The offspring make up the first filial (F1) generation. Every member of the F1 generation is heterozygous and the phenotype of the F1 generation expresses the dominant trait.

Test: Heredity & Variation - Question 4

The number of successful variations are maximized by the process of:

Detailed Solution for Test: Heredity & Variation - Question 4

The number of successful variations are maximised by the process of sexual reproduction. If we observe a field of sugarcane we find very little variations among the individual plants. But in a number of animals including human beings, which reproduce sexually, quite distinct variations are visible among different individuals.

Test: Heredity & Variation - Question 5

Which of the following act as an information source for making proteins in a cell ?

Detailed Solution for Test: Heredity & Variation - Question 5

The DNA in the nucleus of a cell is the information source for making proteins. If the information is changed, different proteins will be made.

Test: Heredity & Variation - Question 6

Genes are segments of:

Detailed Solution for Test: Heredity & Variation - Question 6

A gene is a segment of DNA that is passed down from parents to children and confers a trait to the offspring.

Test: Heredity & Variation - Question 7

A pea plant shows the genetic makeup TtRr. How will the plant appear externally ?

Detailed Solution for Test: Heredity & Variation - Question 7

Tall with round seeds

Since tallness of plant and round shape of seeds are dominant characters, these will be expressed in F2 generation.

Test: Heredity & Variation - Question 8

The number of differences that appear in the new progeny in case of sexual reproduction is termed as ?

Test: Heredity & Variation - Question 9

If two pairs of characters are crossed in pea plants, then they show an independent inheritance because:

Detailed Solution for Test: Heredity & Variation - Question 9

Genes located on different chromosomes will be inherited independently of each other.

Test: Heredity & Variation - Question 10

The normal number of chromosomes in the progeny is maintained when the germ cells:

Detailed Solution for Test: Heredity & Variation - Question 10

Each cell has two copies of chromosome one inherited from each mother and father. Every germ cell is taking one chromosome from each pair that may from either maternal origin or paternal. When these two germ cell combine, they restore the normal no. of the chromosome in the progeny maintaining the stability of DNA

Test: Heredity & Variation - Question 11

Exchange of genetic material takes place in

Detailed Solution for Test: Heredity & Variation - Question 11

Explanation:  Sexual reproduction involves meiosis in gamete mother cells to form gametes and fusion of male and female gametes into zygote.

Test: Heredity & Variation - Question 12

A zygote which has an X-chromosome inherited from the father will develop into a

Detailed Solution for Test: Heredity & Variation - Question 12

Explanation:  Humans follow XX- XY mechanism of sex determination.

Test: Heredity & Variation - Question 13

A basket of vegetables contains carrot, potato, radish and tomato. Which of them represent the correct homologous structures?

Detailed Solution for Test: Heredity & Variation - Question 13

Explanation:  Homologous organs perform different functions and have different appearance but share common basic structural plan and origin.

Test: Heredity & Variation - Question 14

A trait in an organism is influenced by

Detailed Solution for Test: Heredity & Variation - Question 14

Explanation:  An organism develops from zygote which in turn is product of fusion of male and female gamete.

Test: Heredity & Variation - Question 15

From the options given below, select the character which can be acquired but not inherited

Detailed Solution for Test: Heredity & Variation - Question 15

Since the size of body is changeable according to our consumption and is not same from generation to generation.For e.g., A fat boy can have a slim father or mother or both.

Science & Technology for UPSC CSE

86 videos|349 docs|235 tests
 Use Code STAYHOME200 and get INR 200 additional OFF Use Coupon Code
Information about Test: Heredity & Variation Page
In this test you can find the Exam questions for Test: Heredity & Variation solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Heredity & Variation, EduRev gives you an ample number of Online tests for practice

Science & Technology for UPSC CSE

86 videos|349 docs|235 tests