In humans, sex is determined by?
A. two homologous chromosomes B. a dominant gene for maleness present in a male C. two similar sex chromosomes in the male and dissimilar in the female D. the differences in the nature of the X and Y chromosomes in the male. Correct Answer: Option B B. a dominant gene...The name given to a sudden change in a gene or chromosome that can be passed on to the offspring is?
A. inheritance B. linkage C. alleles D. mutation Correct Answer: Option D D. mutationWhich of the following is not a morphological variation in human beings?
A. Size B. Blood groups C. Colour D. Fingerprints. Correct Answer: Option B B. Blood groupsWhich of the following statements about blood groups in human is not correct?
A. Siblings may not belong to the same blood group B. There are four possible blood groups C. People with blood group O can receive blood from all other groups D. People with blood group AB are universal recipients Correct Answer: Option C C. People with blood group O...When Mendel crossed round seeds with wrinkled seeds of Pea Plant, what was the ratio of wrinkled seeds to round seeds in the F2 plants?
A. 3 : 1 B. 2 : 1 C. 1 : 3 D. 1 : 2 Correct Answer: Option C C. 1 : 3Products
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