Genetics Checkpoint Quiz 1 Question Preview (ID: 23309)


Quarter 3 Checkpoint Quiz 1. TEACHERS: click here for quick copy question ID numbers.

If an organism has two different genes for a trait, it is this trait that is shown.
a) Allele
b) Homozygous
c) Genotype
d) Dominant

An organism that has two identical traits (ex. aa)
a) Homozygous
b) Dominant
c) Genotype
d) Recessive

What a person’s genes, or DNA, look like
a) Genotype
b) Phenotype
c) Mitosis
d) Meosis

The trait for being tall is dominant to being short. For this situation, use either “T” or “t.” Which letter would be used to represent the tall trait? ________________
a) T
b) t
c)
d)

A tall woman (Genotype: Tt) and a short man (Genotype: tt) have children. Complete the Punnett Square on scratch paper and answer this question. What percentage of the children ends up being TALL? ____________________
a) 25%
b) 50%
c) 75%
d) 100%

A tall woman (Genotype: Tt) and a tall man (Genotype: Tt) have children. Complete the Punnett Square on scratch paper and answer the question. What percentage of their children ends up being TALL? _____________________
a) 25%
b) 50%
c) 75%
d) 100%

An alternative form of a gene is called...
a) Meiosis
b) Allele
c) Heredity
d) Dominant

The observable characteristic or physical appearance of an organism is called...
a) Homozygous
b) Allele
c) Phenotype
d) Genotype

An organism that has one dominant and one recessive trait (ex. Aa)
a) Heterozygous
b) Homozygous
c) Genotype
d) Prophase

The passing of traits from parents to offspring
a) Dominant
b) Meiosis
c) Heredity
d) Genotype

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