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Heredity and Evolution

All about heredity and evolution

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

When a sperm with X chromosomes fertilizes the egg, the resulting zygote would develop into a child with

  1. XX chromosomes
  2. YY chromosomes
  3. XY chromosomes
  4. Any of the above options can be possible
  5. None of these
Question 2 Multiple Choice (Single Answer)

Which of the following can bring a change in the genotype of an organism?
a) inheritable traits
b) acquired traits
c) change in environment

  1. a, b and c
  2. only b
  3. only a
  4. only a and b
  5. only b and c
Question 3 Multiple Choice (Single Answer)

If pea is a biennial plant, what does that mean?

  1. Two varieties of a pea plant can be grown in a year.
  2. Pea plants can be planted only during two months of winter.
  3. Pea plants are grown after every two years in the same field.
  4. The biological life cycle of a pea plant completes in 2 years.
  5. Two species of a pea plant can be grown simultaneously.
Question 4 Multiple Choice (Single Answer)

Which of the following was not used by Stanley L .Miller and Harold C. Urey while creating a primitive environment in the laboratory?

  1. Water
  2. Methane
  3. Ammonia
  4. Oxygen
  5. Hydrogen
Question 5 Multiple Choice (Single Answer)

The change in which of the following factors of biological population over subsequent generations constitutes the proccess of evolution?

  1. Inherited traits
  2. Heredity
  3. Acquired traits
  4. Phenotype
  5. None of these
Question 6 Multiple Choice (Single Answer)

How many characters are simultaneously studied in a dihybrid cross?

  1. Two
  2. Two contrasting
  3. Two pairs
  4. Two similar
  5. None of these
Question 7 Multiple Choice (Single Answer)

Which of the following statements regarding asexual reproduction is/are incorrect?
a) It invloves single parent.
b) Variations are usually very minor.
c) Variations take too long to show effect.

  1. only a and b
  2. a, b and c
  3. only a
  4. only c
  5. none of these
Question 8 Multiple Choice (Single Answer)

Which of the following are not the salient features of Charles Darwin theory?
a) Organisms have limited capacity to reproduce.
b) Each organism has to struggle for its day to day survival.
c) Different individuals of a particular species have similar traits.
d) Those organisms which are the fittest are able to survive, while others perish.

  1. a, b, c, d
  2. only b, c, d
  3. only a and c
  4. only b and d
  5. only a, b, c
Question 9 Multiple Choice (Single Answer)

Which of the following are the examples of analogous organs?
a) Forelimbs of a frog
b) Wings of a bird
c) Hands of a human
d) Wings of a bat

  1. only b and d
  2. only a, b and c
  3. only b, c and d
  4. a, b, c and d
  5. only a and c
Question 10 Multiple Choice (Single Answer)

Which of the options best explains the existence of bacteria as the oldest organisms on the Earth?

  1. They are very small in size.
  2. They are not easily visible.
  3. They can survive harshest climates.
  4. They have a very strong structure.
  5. They have many special features, which protect them.
Question 11 Multiple Choice (Single Answer)

One of the pairs of contrasting characters taken by Mendel to study monohybrid cross in pea was

  1. heathy and weak
  2. thick and thin
  3. tall and short
  4. green and yellow
  5. round and wrinkled
Question 12 Multiple Choice (Single Answer)

Mendel observed that characters are often present in pairs. A pair of contrasting characters is called a/an

  1. gene
  2. chromosome
  3. trait
  4. allele
  5. None of these
Question 13 Multiple Choice (Single Answer)

Somatic cells in human beings contain

  1. 46 pairs of chromosomes
  2. 23 pairs of chromosomes
  3. 26 chromosomes
  4. 23 chromosomes
  5. No chromosomes
Question 14 Multiple Choice (Single Answer)

What do we call the actual genetic make up of an organism which may or may not be visible by the apparent characters?

  1. Phenotype
  2. Acquired traits
  3. Inheritable traits
  4. Genotype
  5. Haploid
Question 15 Multiple Choice (Single Answer)

Which of the following is/are the reason(s) that Mendel used pea plant in his experiments?
(a) Pea plant is a biennial plant.
(b) Easily identifiable and contrasting characters are present in pea plants.
(c) Cross pollination can be induced in pea plants.
(d) A single pea pod has many seeds in it.

  1. Only (a), (b) and (c)
  2. Only (a) and (d)
  3. Only (b) and (c)
  4. Only (b), (c) and (d)
  5. Only (c) and (d)
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