SC.7.L.16.2: Punnett Squares Question Preview (ID: 45508)


Punnett Square Vocabulary. TEACHERS: click here for quick copy question ID numbers.

What does heterozygous mean?
a) a fertilized gamete cell (diploid cell)
b) Having two of the SAME alleles of a gene
c) a set of instructions that specify traits
d) Having two DIFFERENT alleles of a gene

What does homozygous mean?
a) Having two of the SAME alleles of a gene
b) Having two DIFFERENT alleles of a gene
c) A physical trait that is expressed
d) a fertilized gamete cell (diploid cell)

What does it mean if an allele is dominant?
a) An allele that has total power and has taken over by force
b) An allele that is hidden unless it is teamed up with another of the same
c) An allele that is expressed, even if a different allele is present
d) An allele that only a male person can possess

What does it mean if an allele is recessive?
a) An allele that is expressed, even if a different allele is present; Represented with a capital letter
b) An allele that is hidden by a dominant allele; it is only expressed if teamed up with another recessive allele
c) An allele that diminishes (gets smaller) throughout one's life until it disappears completely
d) An allele that does not code for a physical trait; only a hidden trait such as personality

What is a genotype?
a) The alleles that a person has (represented with letters like Aa)
b) The physical traits based on a person's genes
c) Having two different alleles of a gene
d) A specific segment of the DNA

What is a phenotype?
a) The alleles that a person has (represented using letters like Aa)
b) A chart that shows all the possible allele combinations of two parents
c) When a person has two of the same alleles of a gene
d) The physical appearance or visible traits based on the genes

What is a Punnett Square?
a) The alleles of all parents and offspring in a family
b) The physical appearance or visible traits of the parent and offspring
c) A chart that shows all the possible allele combinations of two parents
d) The record of all ancestors of an organism (shows descendants of a family)

What does P1 represent?
a) The parental generation
b) The first generation of offspring
c) The probability of the offspring
d) The chart that shows possible offspring

What does F1 represent?
a) The parental generation
b) The first generation of offspring
c) The chart that shows possible offspring
d) The chart that shows all family members

What is an allele?
a) A full strand of DNA folded up into an X shape
b) Different forms of a gene
c) The physical expression of a gene
d) Cells resulting from cell division

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