BIOLOGY

JAMB 2012 - Question 41

Biology 2012 JAMB Past Questions - Question 41: A yellow maize is planted and all the fruits obtained are of yellow seeds. When they are cross-bred, 70 yellow seeds and white seeds are obtained in a ratio 3: 1. The yellow seed is said to be

Choose the most appropriate option for the gap .
A yellow maize is planted and all the fruits obtained are of yellow seeds. When they are cross-bred, 70 yellow seeds and white seeds are obtained in a ratio 3: 1. The yellow seed is said to be
A yellow maize is planted and all the fruits obtained are of yellow seeds. When they are cross-bred, 70 yellow seeds and white seeds are obtained in a ratio 3: 1. The yellow seed is said to be
A:
B:
C:
D:
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Correct Answer

D

Explanation

Let capital Y represent yellow seeds while small y represent white seeds The offspring of the first generation F, serves as parents for the second generation Yellow colour is the dominant trait while white colour is recessive. Sex linked trait is a trait that is usually attached to the 'X' sex chromosome in man. Examples of sex linked traits are haemophilia, colour blindness, baldness. Non heritable character is a character that cannot be transferred from parents to offspring.

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