Question

question 1
the diagram shows a dna fingerprint from a cow and four calves. which of these is most likely the calf of this cow?
cow calf 1 calf 2 calf 3 calf 4
calf 1
calf 2
calf 3
calf 4

Explanation:

Step1: Understand DNA fingerprinting principle

DNA fingerprinting shows genetic similarities. A calf inherits half of its DNA from its mother (the cow). We need to compare the DNA bands of the cow with each calf.

Step2: Compare bands

• Calf 1: Many bands do not match the cow's bands.
• Calf 2: Many bands do not match the cow's bands.
• Calf 3: Many bands do not match the cow's bands.
• Calf 4: Has a significant number of matching bands with the cow, which is consistent with the inheritance pattern (half - of - the - DNA inheritance from the mother in sexual reproduction).

Answer:

d. Calf 4