Genetics and Evolution-Heredity and Variation [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Biology]: Questions 23 - 27 of 95

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Question 23

Question MCQ▾

The genotypes of a plant variety were TtHh, Tthh, ttHh, and tthh, where T = tallness and H = hairy stem. Which one of the following crosses would produce progeny giving a phenotypic ratio approximately 1: 1: 1: 1?

Choices

Choice (4)Response

a.

TtHh x tthh

b.

TtHh x TTHh

c.

TtHh x ttHh

d.

TtHh x TtHh

Edit

Question 24

Question MCQ▾

The branch of botany dealing with heredity and variation is called?

Choices

Choice (4)Response

a.

Evolution

b.

Geobotany

c.

Genetics

d.

Sericulture

Edit

Question 25

Question MCQ▾

From single ear of corn, a farmer planted 200 kernels which produced 140 tall and 40 dwarf plants. The genotype of these offsprings are most likely

Choices

Choice (4)Response

a.

TT and tts

b.

TT, Tt and tt

c.

Tt and tt

d.

TT and Tt

Edit

Question 26

Question MCQ▾

In 1990 A. D. three biologists independently discovered Mendel՚s principles. They are

Choices

Choice (4)Response

a.

Sutton, Morgan and Bridges.

b.

Bateson, Punnet and Bridgess.

c.

De Vries, Correns and Tschermak.

d.

Avery, McLeod and McCarthy.

Edit

Question 27

Question MCQ▾

Kappa particles indicate

Choices

Choice (4)Response

a.

Mutation

b.

Cytoplasmic inheritance

c.

Nuclear inheritance

d.

Nucleo-cytoplasmic inheritance

Edit