The Smallest Grains of Dust Stick Together in an Accretion

question 70

Multiple Choice

The smallest grains of dust stick together in an accretion disk by which force?

• A) gravitational force
• B) electrostatic force
• C) magnetic force
• D) quantum mechanical force
• E) strong force

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Definitions:

Genetic Engineering

A field of biotechnology that involves directly manipulating the genes of organisms to modify or improve specific characteristics or produce desired products.

Dominant Genes

Genes that express their trait even when only one copy is present, overpowering recessive genes in determining certain characteristics.

Recessive Genes

Genes that produce their characteristic phenotype only when their allele is identical and not masked by a dominant allele in a heterozygous pairing.

Epigenetics

The study of heritable changes in gene expression that occur without changes in the DNA sequence, often influenced by environmental factors and lifestyle.