Question

1. why might cheetahs have different spot patterns, such as blotchy vs. dotted?

most differences in spot patterns are caused by new genetic combinations formed during meiosis.
all cheetahs have identical dna, but the patterns form randomly.
spot patterns change daily based on temperature and precipitation changes.
cheetahs can choose to change their spot pattern to match their environment.

Explanation:

Analyze the biological basis of phenotypic variation

Phenotypic traits like spot patterns are determined by genetic inheritance. Variation in these traits among offspring is primarily driven by genetic recombination and independent assortment during meiosis.

Evaluate the given options

• Option 1 correctly attributes the variation to new genetic combinations formed during meiosis.
• Option 2 is incorrect because cheetahs do not have identical DNA, and patterns are genetically determined rather than completely random.
• Option 3 is incorrect because spot patterns are permanent and do not change daily based on weather.
• Option 4 is incorrect because organisms cannot consciously choose to alter their genetic traits to match their environment.

Answer:

• (A) Most differences in spot patterns are caused by new genetic combinations formed during meiosis. (Correct answer)
• (B) All cheetahs have identical DNA, but the patterns form randomly.
• (C) Spot patterns change daily based on temperature and precipitation changes.
• (D) Cheetahs can choose to change their spot pattern to match their environment.