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Heredity and Evolution

Heredity BiologyGenetics and EvolutionGenetics and EvolutionSexual Reproduction in Flowering Plants

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

A trait in an organism is influenced by

  1. maternal DNA only
  2. paternal DNA only
  3. both maternal and paternal DNA
  4. neither by paternal nor by maternal DNA
  5. the environment
Question 2 Multiple Choice (Single Answer)

Identify the vestigial organ(s) in humans.

  1. Vermiform appendix
  2. Nictitating membrane
  3. Wisdom teeth
  4. Erector pili
  5. All of the above
Question 3 Multiple Choice (Single Answer)

Which of the following pairs of organs is analogous to each other?

  1. Leaf spines and leaf tendrils
  2. Forelimbs of a frog and human hand
  3. Flipper of a whale and leg of a horse
  4. Wings of an insect and wings of a bat
  5. None of the above
Question 4 Multiple Choice (Single Answer)

A couple with blood types A and B may have children with blood types

  1. A and B only
  2. AB
  3. A, B and AB only
  4. A, B and O only
  5. A, B, AB and O
Question 5 Multiple Choice (Single Answer)

What will be the genotypic ratio of the cross between Rr and rr?

  1. 1 : 2 : 1
  2. 3 : 1
  3. 1 : 1
  4. 1 : 1 : 1
  5. 2 : 1
Question 6 Multiple Choice (Single Answer)

Which of these is homozygous recessive?

  1. R
  2. r
  3. RR
  4. Rr
  5. rr
Question 7 Multiple Choice (Single Answer)

What will be the genotypic ratio of the cross between Tt and Tt?

  1. 1 : 1
  2. 3 : 1
  3. 1 : 2 : 1
  4. 2 : 1
  5. 1 : 1 : 1
Question 8 Multiple Choice (Single Answer)

What does the homologous organs indicate?

  1. Parallel evolution
  2. Natural selection
  3. Convergent evolution
  4. Common descendent
  5. Genetic drift
Question 9 Multiple Choice (Single Answer)

If Tt mates with tt, what will be the characteristic of the offspring?

  1. 75% recessive
  2. 50% recessive
  3. 25% recessive
  4. 25% dominant
  5. All dominant
Question 10 Multiple Choice (Single Answer)

Which of the following is a not an autosomal abnormality during birth?

  1. Cri du Chat syndrome
  2. Patau syndrome
  3. Klinefelter syndrome
  4. Edwards syndrome
  5. Down syndrome
Question 11 Multiple Choice (Single Answer)

What are alternative forms of a gene called?

  1. Loci
  2. Multiples
  3. Traits
  4. Allele
  5. Chromosomes
Question 12 Multiple Choice (Single Answer)

What is the genotype of an individual with Turner syndrome?

  1. XXY
  2. XYY
  3. XO
  4. XXX
  5. YO
Question 13 Multiple Choice (Single Answer)

Which of the following chromosomes carry the sex-linked traits?

  1. X
  2. 13
  3. Y
  4. 18
  5. 15
Question 14 Multiple Choice (Single Answer)

In a certain plant, purple flowers are dominant to red flowers. If the cross of two purple-flowered plants produces some some purple-flowered and some red-flowered plants, what is the genotype of the parent plants?

  1. PP x Pp
  2. Pp x Pp
  3. pp x pp
  4. pp x PP
  5. PP x PP
Question 15 Multiple Choice (Single Answer)

A pair of characters separate during gamete formation. This is the law of __________.

  1. inheritance
  2. segregation
  3. dominance
  4. independent assortment
  5. evolution
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