Variation in Population

Q.

What are the 4 factors of evolution?

Q.

Can evolution occur in the absence of genetic variation?

Q. Small differences between individuals of the same species are called variations.

Q.

State True or False.

Genetic variations are always advantageous.

1. True

2. False

Q. What is variation? How is variation created in a population? How does the creation of variation in a species promote survival?

Q.

Black moths become predominant over white moths during industrial revolution demonstrates natural selection

1. True

2. False

Q. Two varieties of peppered moths, black and white, is an example of phenotypic variations.

1. True
2. False

Q. Differentiate between short-term and long-term adaptations.

Q. In England. after industrialization (1920), the dark-variety of peppered moth (Biston carbonaria) outnumbered light-variety (Biston hetularia) this can be represented by:

Q. Choose the correct answers from the alternatives given.
All of the following are sexual sources of genetic variation except

1. crossing-over
2. mutation
3. production of offspring from two parents
4. random fertilization

Q.

All the children of a particular set of parents inherit the exact same alleles.

1. True

2. False

Q.

Genetic variation affects the evolution of populations.

1. True

2. False

Q. Biston betularia typica and Biston betularia carbonaria, the two types of moth are an example of

1. Incomplete Inheritance
2. Sex linked inheritance
3. Linkage
4. Variation

Q. The peppered moth experiment in which black moths become predominant over white moths during industrial revolution demonstrates which of the following?

1. Phenotypic variation and natural selection
2. Genotypic variation
3. Natural selection
4. None of these

Q. The differences in the characters or traits among the individuals of a species are called as

1. Variations
2. Speciation
3. Both A and B
4. None of the above

Q. Which of the following is the type of variation?

1. Genetic
2. Environmental
3. Speciation
4. Both A and B

Q. Formation of new species of plants and animals is the effect of evolution.

1. True

2. False

Q.

Which of the following is a genetic variation?

1. Ability to play badminton

2. Child born with a tail

3. Ability to speak a foreign language

4. Language proficiency

Q.

Which of the following are the main causes of genetic variations?

1. Mutations

2. Sexual reproduction

3. Gene flow

4. All the above

Q.

Variations that affect germ cells are termed as somatic variations.

1. True

2. False

Q. The differences in the characters (or traits) among the individuals of a species are called ___.

1. variation
2. heredity
3. speciation
4. alleles

Q.

Biston betularia typica and Biston betularia carbonaria, the two types of moth are an example of

1. Variation

2. Sex linked inheritance

3. Incomplete Inheritance

4. Linkage