The Figure Below Illustrates the Proton-Proton Chain

question 59

Multiple Choice

The figure below illustrates the proton-proton chain.How many gamma rays are produced for each helium (⁴He) nucleus created?

• A) None
• B) 2
• C) 4
• D) 6
• E) 12

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Definitions:

Sry Gene

A sex-determining gene on the Y chromosome that triggers the development of male physical characteristics in mammals.

Undifferentiated Gonads

An early developmental stage in embryos where the gonads have not yet differentiated into male (testes) or female (ovaries) reproductive organs.

Pituitary

A small, pea-sized gland located at the base of the brain, responsible for the production and release of hormones that regulate various body functions.

Secondary Sex Characteristics

Those physical characteristics that are not directly involved in reproduction but distinguish the mature male from the mature female.