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NEET UG Principles of Inheritance and Variation — practice questions — page 3

Explore 137 free Principles of Inheritance and Variation questions in NEET UG Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Principles of Inheritance and Variation questions and exercises with answers

Showing questions 61–90 of 137.

Mendel's data carried greater credibility because his samples were:Read the answer and worked solution →Mendel chose characters that showed how many opposing traits?Read the answer and worked solution →A line showing stable trait expression over generations is called:Read the answer and worked solution →Which pair of seed traits did Mendel study?Read the answer and worked solution →The diagram used to work out cross outcomes is the:Read the answer and worked solution →The Punnett square was developed by a geneticist from:Read the answer and worked solution →The Punnett square calculates the probability of possible:Read the answer and worked solution →In a monohybrid cross, the phenotypic ratio at F2 is:Read the answer and worked solution →In that same cross, the genotypic ratio at F2 is:Read the answer and worked solution →By the law of dominance, characters are controlled by units called:Read the answer and worked solution →Mendel stated that these factors occur in:Read the answer and worked solution →In a dissimilar pair of factors, the one expressed is called:Read the answer and worked solution →The factor not expressed in a dissimilar pair is called:Read the answer and worked solution →The law of segregation rests on the fact that alleles show no:Read the answer and worked solution →During gamete formation, a gamete receives how many of the two factors?Read the answer and worked solution →A homozygous parent produces gametes that are all:Read the answer and worked solution →A heterozygous parent produces how many kinds of gamete?Read the answer and worked solution →The phenotypic ratio from a dihybrid cross is:Read the answer and worked solution →True or false on inheritanceRead the answer and worked solution →Quick picks on inheritanceRead the answer and worked solution →Match each term to its meaningRead the answer and worked solution →Monohybrid or dihybridRead the answer and worked solution →Homozygous or heterozygousRead the answer and worked solution →Run a monohybrid crossRead the answer and worked solution →Fill the gaps on inheritanceRead the answer and worked solution →Spot the one that does not fitRead the answer and worked solution →What fraction of F2 plants were dwarf in Mendel's tall x dwarf cross?Read the answer and worked solution →Who developed the square used to work out offspring genotypes of a cross?Read the answer and worked solution →Flower colour in snapdragon, with pink Rr plants, shows:Read the answer and worked solution →Selfing pink F1 snapdragons gives what F2 phenotype ratio?Read the answer and worked solution →

Worked practice questions

Mendel's data carried greater credibility because his samples were:

  1. Single
  2. Large
  3. Small
  4. Random
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Correct answer: B. Large

1. Chance variation matters less when numbers are big. 2. His counts ran to many plants in each cross. 3. So the large sampling size gave the data credibility. _Source: syllabus Biology, Chapter 5, Principles of Inheritance and Variation._

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Mendel chose characters that showed how many opposing traits?

  1. Six traits
  2. Nine traits
  3. Two traits
  4. Four traits
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Correct answer: C. Two traits

1. Tall or dwarf, yellow or green were the kinds of pair he used. 2. Each character came in a clear either or form. 3. So each showed two opposing traits. _Source: syllabus Biology, Chapter 5, Principles of Inheritance and Variation._

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A line showing stable trait expression over generations is called:

  1. Cross-breeding
  2. Half-breeding
  3. Back-breeding
  4. True-breeding
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Correct answer: D. True-breeding

1. Such a line has undergone continuous self-pollination. 2. Its traits are then reliably passed on. 3. It is called a true-breeding line. _Source: syllabus Biology, Chapter 5, Principles of Inheritance and Variation._

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