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Question 18: Which of the following represent tall plants and
Biology by Lakhmir Singh
Biology

Class 10

Lakhmir Singh

Author:
Lakhmir Singh
Publisher:
S. Chand
Subject:
Science
1

Chapter 1: Life Processes

281 questions

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2

Chapter 2: Control and Coordination

182 questions

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3

Chapter 3: How do Organism Reproduce?

183 questions

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4

Chapter 4: Heredity and Evolution

150 questions

Q1
Question 17: Fill in the following blanks with suitable words :
(a) Genes always work in ................ .
(b) In pea plants, the gene for dwarfness is ..............whereas that for tallness is ............ .
(c) Most people have ............earlobes but some have ............earlobes.
(d) A human gamete contains.............. chromosomes whereas a normal body cell has .......... chromosomes in it.
(e) All races of man have...........blood groups.
(f) The...............chromosomes for a ............are XX whereas that for a ..............are XY.
Q2
Question 18: Which of the following represent tall plants and which represent short plants (or dwarf plants)?
(a) Tt
(b) tt
(c) TT
Give reason for your choice (The symbols have their usual meaning).
Q3
Question 20: (a) Name the scientist who gave the laws of inheritance.
(b) Name an animal in which individuals can change sex. What does this indicate?
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5

Chapter 5: Our Environment

141 questions

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6

Chapter 6: Management of Natural Resources

70 questions

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Question

Question 18: Which of the following represent tall plants and which represent short plants (or dwarf plants)?
(a) Tt
(b) tt
(c) TT
Give reason for your choice (The symbols have their usual meaning).

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Book:

Biology (Lakhmir Singh)

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Question 18: Which of the following represent tall plants and which represent short plants (or dwarf plants)?
(a) Tt
(b) tt
(c) TT
Give reason for your choice (The symbols have their usual meaning).
5 mins ago
Discuss this question LIVE
5 mins ago

Text SolutionText solutionverified iconVerified

Answer: (a) Tt represents tall plants, as T (tall) is dominant over t (dwarf).
(b) tt represents dwarf plants, as t (dwarf) is present in homozygous recessive state.
(c) TT represents tall plants, as T (tall) is present in homozygous dominant state.
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Practice more questions from Biology (Lakhmir Singh)

Q1
Question 17: Fill in the following blanks with suitable words :
(a) Genes always work in ................ .
(b) In pea plants, the gene for dwarfness is ..............whereas that for tallness is ............ .
(c) Most people have ............earlobes but some have ............earlobes.
(d) A human gamete contains.............. chromosomes whereas a normal body cell has .......... chromosomes in it.
(e) All races of man have...........blood groups.
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(a) Tt
(b) tt
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Give reason for your choice (The symbols have their usual meaning).
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Question 20: (a) Name the scientist who gave the laws of inheritance.
(b) Name an animal in which individuals can change sex. What does this indicate?
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Question Text
Question 18: Which of the following represent tall plants and which represent short plants (or dwarf plants)?
(a) Tt
(b) tt
(c) TT
Give reason for your choice (The symbols have their usual meaning).
TopicHeredity and Evolution
SubjectScience
ClassClass 10
Answer TypeText solution:1
Upvotes47