About What Was the Temperature of the Universe When a Typical

question 91

Multiple Choice

About what was the temperature of the universe when a typical CBR photon was no longer able to spontaneously create an electron and positron pair?

• A) 1000 K
• B) 100,000 K
• C) 1 million K
• D) 1 billion K

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Definitions:

Phenotype

The set of observable characteristics of an individual resulting from the interaction of its genotype with the environment.

Allele Dominance

A genetic principle where one allele (variant of a gene) masks the expression of another allele at the same gene locus, determining the organism's phenotype.

Genomic Imprint

A phenomenon where genes are expressed in a parent-of-origin-specific manner, leading to differential expression depending on whether the gene is inherited from the mother or the father.

Chromosomal Abnormalities

Genetic disorders caused by changes in the number or structure of chromosomes that can result in developmental issues or health problems.