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AP EAMCET (EAPCET) Zoology Multiple Choice Questions (MCQs)

Multiple Choice Questions - Genetics

Multiple Choice Questions - Genetics (APEAPCET)

  1. 131. Mendel's law of independent assortment was demonstrated using which of the following organisms?
    a) Drosophila melanogaster
    b) Pisum sativum (pea plant)
    c) Mus musculus (house mouse)
    d) Homo sapiens (humans)
    Answer: b) Pisum sativum (pea plant)
  2. 132. Which of the following traits in Drosophila melanogaster is an example of a sex-linked characteristic?
    a) Wing shape
    b) Body color
    c) Eye color
    d) Size of wings
    Answer: c) Eye color
  3. 133. The inheritance of blood groups in humans is an example of:
    a) Pleiotropy
    b) Multiple alleles
    c) Codominance
    d) Polygenic inheritance
    Answer: b) Multiple alleles
  4. 134. Which of the following is an example of codominance in humans?
    a) Sickle cell anemia
    b) Rh factor in blood groups
    c) Blood groups (ABO)
    d) Cystic fibrosis
    Answer: c) Blood groups (ABO)
  5. 135. The condition where a gene at one locus affects multiple phenotypic traits is known as:
    a) Epistasis
    b) Pleiotropy
    c) Incomplete dominance
    d) Codominance
    Answer: b) Pleiotropy
  6. 136. In the context of sex determination, which of the following theories applies to the determination of sex in honey bees?
    a) Genic balance theory
    b) Haplodiploidy
    c) XX-XY system
    d) ZW-ZZ system
    Answer: b) Haplodiploidy
  7. 137. Which of the following is a sex-linked recessive disorder in humans?
    a) Down syndrome
    b) Haemophilia
    c) Sickle cell anemia
    d) Cystic fibrosis
    Answer: b) Haemophilia
  8. 138. Which of the following Mendelian disorders is caused by a point mutation in a gene coding for a transport protein?
    a) Thalassemia
    b) Sickle cell anemia
    c) Cystic fibrosis
    d) Alkaptonuria
    Answer: c) Cystic fibrosis
  9. 139. The human genome project aimed to:
    a) Sequence the entire human genome
    b) Cure genetic disorders
    c) Study the inheritance of traits in humans
    d) Investigate the role of mutations in evolution
    Answer: a) Sequence the entire human genome
  10. 140. Down syndrome is caused by:
    a) A trisomy of chromosome 21
    b) A monosomy of chromosome X
    c) A deletion on chromosome 18
    d) A duplication on chromosome 13
    Answer: a) A trisomy of chromosome 21


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