Genetics Vocab Quiz Study Guide

What is Genetics?

• The study of genes and heredity

• A type of chemical reaction

• A branch of physics

• A form of art

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A gene is a:

• segment of DNA that codes for a protein

• type of cell in the body

• kind of virus

• form of carbohydrate

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Who discovered DNA was in a spiral form when working with x-ray machines?

• James Watson

• Francis Crick

• Rosalind Franklin

• Maurice Wilkins

Deoxyribonucleic acid (DNA) is

• a type of protein

• a molecule that carries genetic information

• a form of carbohydrate

• a type of lipid

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Amino Acids are:

• Proteins

• Building blocks of proteins

• Carbohydrates

• Fats

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A Codon is:

• a sequence of three nucleotides that together form a unit of genetic code in a DNA or RNA molecule.

• a type of protein found in the cell membrane.

• a molecule that carries oxygen in the blood.

• a type of sugar found in the cell nucleus.

An allele is:

• a type of cell

• a variant form of a gene

• a type of protein

• a type of chromosome

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A nucleotide consists of...

• Proteins, nitrogen base, sugar

• Carbohydrates, sugar, phosphate

• Lipids, sugar, nitrogen base

• Nitrogen base, sugar, phosphate

Polygenic inheritance is ...

• Inheritance determined by a single gene

• Inheritance determined by multiple genes

• Inheritance determined by environmental factors

• Inheritance determined by a single chromosome

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A Dominant trait is:

• a trait that masks another form of the same trait

• a trait that is only expressed when two identical alleles are present

• a trait that is not expressed in the presence of a recessive trait

• a trait that is expressed only in the absence of a recessive trait