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Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 10

According to Mendel alleles have the following character ______ - Science

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Question

According to Mendel alleles have the following character ______.

Options

  • Pair of genes

  • Responsible for character

  • Production of gametes

  • Recessive factors

MCQ
Fill in the Blanks

Solution

According to Mendel alleles have the following character Pair of genes.

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Chapter 18: Genetics - Evaluation [Page 271]

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Samacheer Kalvi Science [English] Class 10 SSLC TN Board
Chapter 18 Genetics
Evaluation | Q I. 1. | Page 271

RELATED QUESTIONS

Appearance of new combinations in F2 generation in a dihybrid cross proves the law of_____________ .

  1. dominance
  2. segregation
  3. independent assortment
  4. purity of gametes

Which one of the following is an example of multiple alleles?

(a) Height in pea plant

(b) Hair colour in cattle

(c) Petal colour in four o'clock plant

(d) Wing-size in Drosophila


Give appropriate biological/technical terms for the following:

The type of immunity that exists in our body due to our genetic makeup.


Explain the following terms:

Laws of Inheritance


Choose the correct answer:

If a pea plant with round seeds is selfed and the offspring are in the ratio 3:1, then the plant is _________


______ pairs of contrasting characters in pea plants were studied by Mendel in his experiments.


A heterozygous violet-flowered pea plant is crossed to another homozygous violet- flowered pea plant. What percent of the progeny plants will have the recessive trait, i.e., white flowers?


Two pink coloured flowers on crossing resulted in 1 red, 2 pink and 1 white flower progeny. The nature of the cross will be ______.


Two pea plants one with round green seeds (RRyy) and another with wrinkled yellow (rrYY) seeds produce F1 progeny that have round, yellow (RrYy) seeds. When F1 plants are selfed, the F2 progeny will have new combination of characters. Choose the new combination from the following:

  1. Round, yellow
  2. Round, green
  3. Wrinkled, yellow
  4. Wrinkled, green

In order to obtain the F1 generation Mendel pollinated a pure-breeding tall plant with a pure breeding dwarf plant. But for getting the F2 generation, he simply self-pollinated the tall F1 plants. Why?


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