Root Suck Back Is Caused by the Surface Tension of the Molten

question 4

Multiple Choice

Root suck back is caused by the surface tension of the molten metal trying to pull itself into a ball, forming a(n) ____.

• A) complete root surface
• B) V-groove
• C) concave root surface
• D) incomplete root surface

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Definitions:

Dominant Alleles

Alleles that mask the effect of other alleles for the same gene in heterozygous individuals, determining the phenotype.

Recessive Alleles

Genetic variations that must be present in two copies (homozygous) to express a trait, as opposed to dominant alleles that require only one copy.

Epistasis

An interaction between genes where the presence or absence of alleles of one gene influences the expression of another gene.

Alleles

Alleles are alternative forms of a gene that arise by mutation and are found at the same place on a chromosome, contributing to genetic variation in populations.