Biology
Class 10
Lakhmir Singh
1
Chapter 1: Life Processes
281 questions
2
Chapter 2: Control and Coordination
182 questions
3
Chapter 3: How do Organism Reproduce?
183 questions
4
Chapter 4: Heredity and Evolution
150 questions
Q1
Question 56:
Select the incorrect statement from the following :
(a) frequency of certain genes in a population changes over several generations resulting in evolution
(b) reduction in the weight of an organism due to starvation is genetically controlled
(c) low weight parents can have heavy weight progeny
(d) traits which are not inherited over generations do not cause evolution.
(a) frequency of certain genes in a population changes over several generations resulting in evolution
(b) reduction in the weight of an organism due to starvation is genetically controlled
(c) low weight parents can have heavy weight progeny
(d) traits which are not inherited over generations do not cause evolution.
Q2
Question 57:
New species may be formed if :
(i) DNA undergoes significant changes in germ cells
(ii) chromosome number changes in the gamete
(iii) there is no change in the genetic material
(iv) mating does not take place
(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii), (iii) and (iv)
(d) (i), (ii) and (iii)
(i) DNA undergoes significant changes in germ cells
(ii) chromosome number changes in the gamete
(iii) there is no change in the genetic material
(iv) mating does not take place
(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii), (iii) and (iv)
(d) (i), (ii) and (iii)
Q3
Question 58:
According to the evolutionary theory, formation of a new species is generally due to :
(a) sudden creation by nature
(b) accumulation of variations over several generations
(c) clones formed during asexual reproduction
(d) movement of individuals from one habitat to another.
View all question(a) sudden creation by nature
(b) accumulation of variations over several generations
(c) clones formed during asexual reproduction
(d) movement of individuals from one habitat to another.
5
Chapter 5: Our Environment
141 questions
6
Chapter 6: Management of Natural Resources
70 questions
Question
Question 57:
New species may be formed if :
(i) DNA undergoes significant changes in germ cells
(ii) chromosome number changes in the gamete
(iii) there is no change in the genetic material
(iv) mating does not take place
(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii), (iii) and (iv)
(d) (i), (ii) and (iii)
Views: 5,820 students
Found 5 tutors discussing this question
Discuss this question LIVE
6 mins ago
Text solution
Verified
Answer:
(a) (i) and (ii)
New species may be formed if DNA undergoes significant changes in germ cells and chromosome number changes in the gamete.
New species may be formed if DNA undergoes significant changes in germ cells and chromosome number changes in the gamete.
Was this solution helpful?
81
Share
Report
One destination to cover all your homework and assignment needs
Learn Practice Revision Succeed
Instant 1:1 help, 24x7
60, 000+ Expert tutors
Textbook solutions
Big idea maths, McGraw-Hill Education etc
Essay review
Get expert feedback on your essay
Schedule classes
High dosage tutoring from Dedicated 3 experts
Practice more questions from Biology (Lakhmir Singh)
Q1
Question 56:
Select the incorrect statement from the following :
(a) frequency of certain genes in a population changes over several generations resulting in evolution
(b) reduction in the weight of an organism due to starvation is genetically controlled
(c) low weight parents can have heavy weight progeny
(d) traits which are not inherited over generations do not cause evolution.
(a) frequency of certain genes in a population changes over several generations resulting in evolution
(b) reduction in the weight of an organism due to starvation is genetically controlled
(c) low weight parents can have heavy weight progeny
(d) traits which are not inherited over generations do not cause evolution.
Q2
Question 57:
New species may be formed if :
(i) DNA undergoes significant changes in germ cells
(ii) chromosome number changes in the gamete
(iii) there is no change in the genetic material
(iv) mating does not take place
(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii), (iii) and (iv)
(d) (i), (ii) and (iii)
(i) DNA undergoes significant changes in germ cells
(ii) chromosome number changes in the gamete
(iii) there is no change in the genetic material
(iv) mating does not take place
(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii), (iii) and (iv)
(d) (i), (ii) and (iii)
Q3
Question 58:
According to the evolutionary theory, formation of a new species is generally due to :
(a) sudden creation by nature
(b) accumulation of variations over several generations
(c) clones formed during asexual reproduction
(d) movement of individuals from one habitat to another.
View all(a) sudden creation by nature
(b) accumulation of variations over several generations
(c) clones formed during asexual reproduction
(d) movement of individuals from one habitat to another.
Practice questions from Biology (Lakhmir Singh)
Question 1
Views: 5,888
Question 2
Views: 6,036
(a) tallness is the dominant trait
(b) shortness is the dominant trait
(c) tallness is the recessive trait
(d) height of plant is not governed by gene T or t
Question 4
Views: 5,281
(a) the extinction of organism has occurred recently
(b) the extinction of organism has occurred thousands of years ago
(c) the fossil position in the layers of earth is not related to its time of extinction
(d) time of extinction cannot be determined.
Practice more questions from Heredity and Evolution
Practice questions on similar concepts asked by Filo students
Question 1
Views: 5,571
Question 2
Views: 5,608
Question 3
Views: 5,861
Stuck on the question or explanation?
Connect with our Science tutors online and get step by step solution of this question.
231 students are taking LIVE classes
| Question Text |
Question 57:
New species may be formed if : (i) DNA undergoes significant changes in germ cells (ii) chromosome number changes in the gamete (iii) there is no change in the genetic material (iv) mating does not take place (a) (i) and (ii) (b) (i) and (iii) (c) (ii), (iii) and (iv) (d) (i), (ii) and (iii) |
| Topic | Heredity and Evolution |
| Subject | Science |
| Class | Class 10 |
| Answer Type | Text solution:1 |
| Upvotes | 81 |
