Pleiotropy MCQ

Test your knowledge with important Pleiotropy MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Pleiotropy MCQs at Bissoy

• Which of the following is not an example of a holandric trait?
  ক

  Porcupine skin

  খ

  Hypertrichosis

  গ

  Pattern baldness

  ঘ

  Testes determining factor
• Which of the following is a sex-influenced trait?
  ক

  Antlers in male deer

  খ

  Female or male musculature

  গ

  Porcupine skin

  ঘ

  Pattern baldness
• Which of the following is not an example of sex-limited traits?
  ক

  Milk glands in females

  খ

  Short index finger in male

  গ

  Beard in male

  ঘ

  Deep male voice
• Which of the following does not show an environmental mechanism of sex determination?
  ক

  Grasshopper

  খ

  Bonnelia

  গ

  Crepidula

  ঘ

  Ophryotrocha
• Which of the following shows gynandromorphism?
  ক

  Pigeon

  খ

  Silk moth

  গ

  Butterflies

  ঘ

  Grasshopper
• How does Gynander differ from Gynandromorphs?
  ক

  Gynander can only be a male

  খ

  Gynander can only be a female

  গ

  Gynander has patches of tissues of other sex on it

  ঘ

  Gynander has one half body male and the other half as female
• What is the X/A ratio of super females of Drosophila?
  ক

  1

  খ

  0.67

  গ

  1.5

  ঘ

  0.33
• Y chromosome plays a very significant role in the sex determination of Drosophila.
  ক

  True

  খ

  False
• Which of the following determines is responsible for determining the sex of the bacteria?
  ক

  Plasmid

  খ

  Cytoplasm

  গ

  Core nucleus

  ঘ

  Vacuole
• Accumulation of which of the following in the brain leads to phenylketonuria?
  ক

  Phenylpyruvic acid

  খ

  Pyruvic acids

  গ

  Tyrosine

  ঘ

  Phenylalanine
• Which of the following enzymes is not present in the patients of Phenylketonuria?
  ক

  Somatostatin

  খ

  Testosterone

  গ

  Phenylalanine hydroxylase

  ঘ

  Phenylalanine
• Phenylketonuria is a sex-linked dominant trait.
  ক

  True

  খ

  False
• Which of the following is not a symptom of phenylketonuria?
  ক

  Mental retardation

  খ

  Reduction in hair

  গ

  White urine

  ঘ

  Skin pigmentation
• What is the full form of PKU?
  ক

  Phenyl Ketonic Ubisch bodies

  খ

  Para-keto ulna

  গ

  Phenylketonuria

  ঘ

  Para-keto uremia
• What is the mechanism behind pleiotropy?
  ক

  A single gene controls a single character

  খ

  Effect of a gene on metabolic pathways

  গ

  Effect of multiple genes on multiple pathways

  ঘ

  Effect of multiple alleles on a biochemical pathway
• How is pleiotropy different from polygenic inheritance?
  ক

  A single gene can exhibit multiple expressions

  খ

  A single gene exhibits only a single expression

  গ

  Two genes exhibit a single character

  ঘ

  Multiple genes control a single character