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Test: Genetics - 1


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25 Questions MCQ Test Science Class 10 | Test: Genetics - 1

Test: Genetics - 1 for Class 10 2022 is part of Science Class 10 preparation. The Test: Genetics - 1 questions and answers have been prepared according to the Class 10 exam syllabus.The Test: Genetics - 1 MCQs are made for Class 10 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Genetics - 1 below.
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Test: Genetics - 1 - Question 1

Genetics is the branch of science which deals with the study of :-

Test: Genetics - 1 - Question 2

The term 'genetics' was coined by :-

Test: Genetics - 1 - Question 3

The term 'gene' was introduced by :-

Test: Genetics - 1 - Question 4

When a gene exists in more than one form, the different forms are termed :-

Test: Genetics - 1 - Question 5

The contrasting pairs of factors in Mendelian crosses are called :-

Detailed Solution for Test: Genetics - 1 - Question 5

The contrasting pairs of factors on Mendelian crosses are called allelomorphs. Alleles or allelomorphs are the different forms of a gene, having the same locus on homologous chromosome. 

Test: Genetics - 1 - Question 6

Alleles of a gene are found on :-

Detailed Solution for Test: Genetics - 1 - Question 6

An allele is a variant form of a given gene, meaning it is one of two or more versions of a known mutation at the same place on a chromosome.

Homologs/ homologous chromosomes have the same genes i.e. alleles in the same loci where they provide points along each chromosome which enable a pair of chromosomes to align correctly with each other before separating during meiosis.

Test: Genetics - 1 - Question 7

Which statement about alleles is not true :-

Detailed Solution for Test: Genetics - 1 - Question 7

An allele is a variant form of a given gene. On a chromosome, genes are encoded through different nucleotide sequences in DNA, and thus have a specific spot on the chromosome. The spot where a gene is located is called the locus. Genes may possess multiple variants known as alleles, and an allele may also be said to reside at a particular locus.

Test: Genetics - 1 - Question 8

An organism which receives identical alleles of a particular gene from both parents is :-

Test: Genetics - 1 - Question 9

The genetic complement of an organism is known as :-

Test: Genetics - 1 - Question 10

The physical appearance of an individual is known as :-

Test: Genetics - 1 - Question 11

The terms 'genotype' and 'phenotype' were introduced by :-

Test: Genetics - 1 - Question 12

What was Mendel's most important contribution to the modern understanding of biology :-

Test: Genetics - 1 - Question 13

Gregor Mendel was born in :-

Detailed Solution for Test: Genetics - 1 - Question 13

Gregor Mendel was a scientist, Augustinian friar and Abbot of St. Thomas ' Abbey in Brno, of Moravia. Mendel was born in a German speaking family in the part of Austrian Empire. 

Test: Genetics - 1 - Question 14

Mendelism is related with :-

Test: Genetics - 1 - Question 15

Mendel published the results of his experiments in the year :-

Test: Genetics - 1 - Question 16

In 1900 AD, three biologists independently rediscovered Mendel's principles. They were :-

Test: Genetics - 1 - Question 17

How many contrasting traits of pea were studied by mendel :-

Test: Genetics - 1 - Question 18

Which one of the following traits of garden pea studied by Mendel was a recessive feature ?

Test: Genetics - 1 - Question 19

Which of the following contributed to the success of Mendel :-

Test: Genetics - 1 - Question 20

The reason why pea plants were suitable than dogs for Mendel's experiments :-

Test: Genetics - 1 - Question 21

Mendel chose pea plants because they :-

Test: Genetics - 1 - Question 22

Selection of homozygous plant is :-

Test: Genetics - 1 - Question 23

When a cross is made between two parents with respect to a single character, it is called :-

Test: Genetics - 1 - Question 24

Which of the following is the monohybrid ratio :-

Test: Genetics - 1 - Question 25

Mendel formulated the law of purity of gametes on the basis of :-

Detailed Solution for Test: Genetics - 1 - Question 25

The reason is simple, it was due to the Monohybrid cross that Mendel could find that characters that we are not expressed in the To generation where expressed in F2 generation. This could mean gametes independently contains alleles.

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