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WorksheetsGenetics Test 2.0
Total questions: 11
Worksheet time: 6mins
Which term is used to describe the genotype Pp?
Homozygous dominant
Heterozygous
Homozygous recessive
Mixture
What does homozygous dominant mean?
That both alleles for a gene are recessive, so the recessive form of the trait will be expressed.
That one allele is dominant and one is recessive, which mean the dominant trait will be expressed in the offspring.
That both alleles for a gene are dominant, so the dominant form of the trait will be expressed.
That one allele is dominant and one is recessive, which mean the recessive trait will be expressed in the offspring.
Which of the following contains only a SINGLE instruction for determining a trait in an organism?
DNA molecule
chromosome
gene
cell
How many PAIRS of chromosomes are there in most human cells?
58
46
23
12
The allele for green seeds in pea plants, G, is dominant. The allele for yellow seeds in pea plants, g, is recessive. Which combination would produce a plant with yellow seeds?
GG
Gg
gG
gg
If a baby goat received a dominant gene for curly hair from one parent, and a recessive gene for straight hair from the other, which trait will the baby goat display?
No hair
Curly hair
Straight hair
Curly and straight hair
The diagram show 4 living organisms. Which statement is true about the organisms shown?
They are all single celled and have similar organs.
They are all single celled and have identical organs.
They are all multicellular and have similar organs.
They are all multicellular and have identical organs.
Look at the diagram below. If the dominant allele is represented by R and the recessive allele is represented by r, what will the alleles look like for one of the black squares in the diagram?
Rr
rR
RR
rr
How many alleles do we inherit for each gene?
1
2
3
4
What is heredity?
The passing of traits from parent to offspring.
A family tree that shows the relationships between an organism and its ancestors.
A diagram that is used to predict the genotypes of offspring produced by two parents.
A characteristic of an organism.
An organism’s genotype is its
physical appearance
stem height
genetic makeup
feather color
