Select Question Set:
Q. No.
\((p+q)^2=p^2+2 p q+q^2=1\) represents an equation used in
1. Population genetics.
2. Mendelian genetics.
3. Biometrics.
4. Molecular genetics.
Subtopic: Hardy Weinberg Law |
85%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
In Hardy-Weinberg equation, the frequency of heterozygous individual is represented by:
1.q2
2. p2
3. 2pq
4. pq
1.q2
2. p2
3. 2pq
4. pq
Subtopic: Hardy Weinberg Law: 1 |
92%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Match each item in Column I with one In Column II and select the correct match from the codes given:
Codes:
| Column I | Column II | ||
| A. | Homo habilis | P. | More ape like |
| B. | Homo erectus | Q. | More man like |
| C. | Dryopithecus | R. | Probably did not eat meat. |
| D. | Ramapitehcus | S. | Probably ate meat. |
Codes:
| A | B | C | D | |
| 1. | R | S | P | Q |
| 2. | S | R | P | Q |
| 3. | S | R | Q | P |
| 4. | R | S | Q | P |
Subtopic: Evolution Prior to Ape Man |
84%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Consider the given two statements:
| Assertion(A): | Pouched mammals survived in the continent of Australia. |
| Reason(R): | Due to continental drift, pouched mammals of Australia did not face competition from any other mammals. |
| 1. | (A) is false but (R) is true |
| 2. | (A) is true but (R) is false |
| 3. | Both (A) and (R) are true and (R) is the correct explanation of (A) |
| 4. | Both (A) and (R) are true but (R) is not the correct explanation of (A) |
Subtopic: Difference Between Drift & Selection |
86%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
About 65 mya, the dinosaurs suddenly disappeared from the earth. The reason for their sudden disappearance may be:
1. Only (a)
2. Only (b)
3. The truth may live in between (a) and (b).
4. Neither (a) nor (b).
| (a) | Climatic changes killed them. |
| (b) | Most of them evolved into birds. |
1. Only (a)
2. Only (b)
3. The truth may live in between (a) and (b).
4. Neither (a) nor (b).
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
86%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Ichthyosaur was:
1. a marine retile
2. a marine amphibian
3. a fresh water amphibian
4. a flying reptile
1. a marine retile
2. a marine amphibian
3. a fresh water amphibian
4. a flying reptile
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
56%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Most common component of coal-forming ecosystems from the Carboniferous and Permian periods were:
1. Algae and protists
2. Ferns
3. Angisosperms
4. Animals
1. Algae and protists
2. Ferns
3. Angisosperms
4. Animals
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
79%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
How many of the given statements are correct regarding the timeline of evolution of different life forms on Earth?
1. 3
2. 4
3. 5
4. 6
| I: | By the time of 500 mya, invertebrates were formed and active. |
| II: | Jawless fish probably evolved around 350 mya. |
| III: | Sea weeds and few plants existed probably around 320 mya. |
| IV: | The first organisms that invaded land were plants. |
| V: | Lobefins evolved into the first amphibians. |
| VI: | The amphibians evolved into reptiles. |
1. 3
2. 4
3. 5
4. 6
Subtopic: Evolution Prior to Ape Man: 1 |
77%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Consider the given two statements:
| Assertion: | Unlike amphibians, reptiles were truly successful on land. |
| Reason: | Unlike amphibians, reptiles lay thick-shelled eggs which do not dry up in sun. |
| 1. | (A) is false but (R) is true |
| 2. | (A) is true but (R) is false |
| 3. | Both (A) and (R) are true and (R) is the correct explanation of (A) |
| 4. | Both (A) and (R) are true but (R) is not the correct explanation of (A) |
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
78%
Please attempt this question first.
Hints
Please attempt this question first.
In geological time scale, the correct sequence of periods [beginning with earliest] will be:
| 1. | Silurian → Devonian → Carboniferous → Permian |
| 2. | Permian → Devonian → Carboniferous → Silurian |
| 3. | Silurian → Carboniferous → Devonian → Permian |
| 4. | Permian → Carboniferous → Devonian → Silurian |
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
73%
Please attempt this question first.
Hints
Please attempt this question first.
Select Question Set:
© 2024 GoodEd Technologies Pvt. Ltd.