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WorksheetsGenetics & Heredity
Total questions: 55
Worksheet time: 55mins
The mathematical chance that an event will happen is known as
possibility
probability
percentage
product
An example of how several genes influence one trait is
dimples
eye color in humans
color of pea pods
texture of peas
If a male plant with wrinkled seeds (ww) is crossed with a female plant with round seeds (WW), which answer best describes the seeds of the offspring.
all round seeds
three round seeds and one wrinkled seed
all wrinkled seeds
half wrinkled seeds and half round seeds
The process of meiosis makes...?
Identical cells
sex cells with half the number chromosomes found in body cells
chromosomes
body cells
Different forms of a single gene are called _________.
genes
chromosomes
alleles
genotypes
Purple flowers are dominant to white flowers. What would be the phenotype for a flower with genotype pp?
purple
white
pink
yellow
Purple flowers are dominant to white flowers. What would be the phenotype for a flower with genotype Pp?
purple
white
pink
yellow
Purple flowers are dominant to white flowers. What would be the phenotype for a flower with genotype PP?
purple
white
pink
yellow
If a gene has dissimilar (different) pairs of alleles for any hereditary characteristic it is called
homozygous
heterozygous
codominant
dominant
TRUE OR FALSE: A coiled structure of DNA and protein that forms in the cell nucleus during cell division is called a chromosome.
True
False
TRUE OR FALSE: If at least one allele is a capital letter in the pair, the recessive trait will be dominant.
True
False
TRUE OR FALSE: Segments of DNA carrying hereditary instructions that are passed from parents to offspring on chromosomes are called genes.
True
False
Which of the following answers provides the correct parent genotypes for this Punnett Square?
HH x Hh
Hh x Hh
HH x hh
Hh x hh
What organism did Gregor Mendel study?
Flowers
Bacteria
Humans
Pea Plants
A chart that shows all the possible combinations of alleles from parents
T-square
Gene Chart
Punnett Square
DNA organizer
Codominance
A model used to predict possible genotypes and phenotypes of off spring
The study of how traits are passed from parents to offspring
When both alleles can be observed in a phenotype individually
When the offspring's phenotype is a combination of the parents' phenotypes (blending)
Incomplete Dominance
when the two alleles of a gene are the same
when the phenotype is dominant
when the offspring's phenotype is a combination of the parents' phenotypes (blending)
when both alleles can be observed in a phenotype individually
If you cross two rabbits that have the genotype Bb, how many possible genotypes can be found in the offspring?
one
two
three
four
Who is the Father of Genetics?
Darwin
Punnett
Mendel
Einstein
In the blood type Punnett square shown, what is the probability the offspring will inherit each blood type?
50% A, 25% B, 0% AB, 25% O
25% A, 50% B, 25% AB, 0% O
50% A and 50% B
25% AB, 50% A, 25% O
If the pattern of inheritance is simple dominant/recessive, is it possible for two recessive parents to have an offspring with a dominant phenotype?
Yes
No
If the pattern of inheritance is simple dominant/recessive, is it possible for two dominant parents to have an offspring with a recessive phenotype?
Yes if they are both heterozygous
No
Not sure
Yes if they are both homozygous dominant
A trait associated with a gene that is carried on the X or Y chromosome.
sex linked
polygenic
multiple alleles
codomiance
Trait determined by more than one gene, sometimes hundreds of genes.
polygenic
multiple alleles
codominant
sex linked
Pattern of inheritance in which three or more alternative forms of a gene can determine a phenotype.
multiple alleles
codominant
polygenic
incomplete dominance
Based on the data on human height, it is reasonable to conclude that height is an example of a(n) ________ trait.
polygenic
codominant
x-linked
multallelic
Choose all that apply.
Eye color is a trait coded by three separate genes and three different alleles (brown, green, blue). Which pattern(s) of inheritance determine(s) eye color?
X- Linked
Multiple alleles
Polygenic
Incomplete dominance
Check all that apply.
Human (ABO) blood type is determined by which pattern(s) of inheritance?
multiple alleles
polygenic inheritance
codominant alleles
X-linked inheritance
Do a Punnett Square.
A heterozygous type A parent reproduces with a heterozygous type B parent. Which correctly describes the probability of blood type in their offspring?
25% Type A, 25% Type B
25% Type AB, 25% Type O
50% Type A
50% Type B
25% Type A, 25% Type B
50% Type AB
50% Type AB
50% Type O
How many cells are produced from meiosis ?
10
6
4
2
A fertilized egg is called
egg
lettuce
zygote
sperm
The female sex cell is called
zygote
sperm
fertilization
egg
What is it called when a sperm and egg meet?
meiosis
fertilization
cell division
mitosis
Females have ____ and males have _____ chromosomes.
XX, XY
XY, XX
XX, XX
XY, XY
The chromosome theory of inheritance states that genes pass from parents to offspring on....
chromosomes
proteins
airplanes
ribosomes
A woman has 3 children. They are all boys. What are the chances that her next child will be a girl.
10%
25%
50%
100%
Which statement best describes the relationship between a genotype and phenotype?
Genotype determines phenotype.
Phenotype determines genotype.
They don't have any relationship.
They are both font types.
