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ABO blood groups in humans are controlled by the gene I. It has three alleles – Iᴬ Iᴮ and i. Since there are three different alleles, six different genotypes are possible. How many phenotypes can occur?
Options
(a) Three
(b) One
(c) Four
(d) Two
Correct Answer:
Four
Explanation:
The three calle/es in ABO blood groups in humans can produce six different genotypes and four different phenotypes.
Genotypes Phenotypes
Iᴬ Iᴬ, Iᴬ i Blood group A
Iᴮ Iᴮ , Iᴮ i Blood group B
Iᴬ Iᴮ Blood group AB
i i Blood group O
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Topics: Human Physiology Systems
(35)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The osmotic expansion of a cell kept in water is chiefly regulated by:
- Which of the following type of plastids does not contain stored food material
- In a normal pregnant woman, the amount of total gonadotropin activity
- The cutting of DNA at specific locations became possible with the discovery of
- A patient brought to a hospital with myocardial infarction is normally immediately given
Topics: Human Physiology Systems (35)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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