NB Intro To Genetics: Question Preview (ID: 26063)


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What is the ratio of a dominate trait to be visible in the phenotype if two heterozygous parents are crossed.
a) 9:3:3:1
b) 3:1
c) 2:2
d) 100%

If two parents are heterozygous, what is the probability that they will have an offspring that is homozygous recessive
a) 100%
b) 75%
c) 50%
d) 25%

The likelihood that an event will occur.
a) Chance
b) Probability
c) Outcome
d) Statistics

The reproductive cells that are passed on from parents to offspring
a) gametes
b) genes
c) genome
d) genotype

A diagram used as a tool to predict the outcome of traits passed on from parents to offspring.
a) Punnett Square
b) Amino Acid Code
c) Inheritance Chart
d) Factor Cross

The allele that is often not visible in the organism and usually visible when the alleles are identical.
a) gene
b) genetics
c) dominant
d) recessive

The characteristic of a gene that can easily be observed.
a) gene
b) DNA
c) protein
d) trait

The form of a trait (allele) that is expressed over other alleles.
a) gene
b) trait
c) dominant
d) recessive

A segment of a gene that codes for a particular protein.
a) genetics
b) trait
c) gene
d) DNA

An organism that has two alleles that are identical.
a) homozygous
b) heterozygous
c) dominant
d) recessive

Organisms that have two different alleles for the same trait.
a) homozygous
b) heterozygous
c) dominant
d) recessive

The physical characteristic of a gene that is often seen in an organism.
a) phenotype
b) genotype
c) genetics
d) trait

The genetic make up of an organism.
a) phenotype
b) genetics
c) gene
d) genotype

One of the forms of a trait is called a(n) ____.
a) allele
b) genotype
c) phenotype
d) genetics

The passing of traits from parents to offspring.
a) allele
b) genetics
c) heredity
d) genes

The study of heredity is called _____.
a) Allele
b) Genetics
c) Genes
d) Genotype

Gregor Mendel is known for studying.
a) The traits passed on in guinea pigs.
b) The traits passed on in rats.
c) The traits passed on in pea plants.
d) The traits passed on in roses.

The spaces outside of a Punnett square represent.
a) offspring
b) alleles
c) gametes
d) genes

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