WorksheetsGenetics
Total questions: 28
Worksheet time: 19mins
How can two parents with brown eyes have a child with blue eyes?
The parents may both have recessive genes for blue eyes.
The child was born during the winter.
Eye color in humans is not an inherited trait.
The child was deprived of oxygen during its birth.
Which type of genetic factor can hide or mask another genetic factor?
Strong
Huge
Dominant
Recessive
Which type of genetic factor get hidden or masked by another genetic factor?
Strong
Huge
Dominant
Recessive
Which term refers to the study of how traits are inherited?
Physiology
Genealogy
Genetics
Reproduction
What part of an organism's genetic makeup is received from its mother?
25%
50%
75%
100%
What part of an organism's genetic makeup is received from its father?
25%
50%
75%
100%
What type of chart is used to help organize study and predict genetic inheritance?
Punnett square
Graph
Flow chart
Diagram
What are traits?
Small hairs that grow on your forehead
Characteristics passed on from parents to children, like eye color
People who are unpatriotic
The powerhouse of the cell
What does a dominant form do to a recessive form?
The dominant form blocks the recessive form
Nothing, as long as the recessive form is strong enough
The dominant form mutates the recessive form
The dominant form erases the recessive form
From this Punnett square what would be the predicted outcome from 100 plants?
25 plants would have yellow peas, 75 plants would have green peas
50 plants would have yellow peas, 50 plants would have green peas
25 plants would have yellow peas, 50 plants would have green peas
75 plants would have yellow peas, 25 plants would have green peas
What part or parts of this chromosome are made up of DNA
Only A
Only B
Only C
A, B, and C
What’s the difference between something’s “genotype” and “phenotype”?
Genotype is how many genes it has; phenotype is what it smells like
Genotype is its genetic makeup; phenotype is what it looks like
Genotype is what it looks like; phenotype is how big it is
Genotype is what it looks like; phenotype is its genetic makeup
What is a genotype?
Genotype is how many genes it has
Genotype is its genetic makeup
Genotype is how big it is
Genotype is what it looks like
What is a phenotype?
phenotype is what it smells like
phenotype is what it looks like
phenotype is how big it is
phenotype is its genetic makeup
What is heredity?
The study of how traits are passed from parents to offspring
The process of chromosomes mutating
The study of DNA
The passing of traits from parents to offspring
What is the term for a trait that is on an X or Y chromosome?
Codominance
Sex-linked
Incomplete dominance
Polygenic inheritance
If mating produces 100 offspring, about how many will have yellow seeds?
25
50
75
100
If mating produces 100 offspring, about how many will have green seeds?
25
50
75
100
True or False: In humans, skin color and weight are partly determined by multiple alleles.
True
False
True or False: Mendel determined that each parent contributes one factor for each trait in the offspring.
True
False
True or False: A florist has one kind of plant that usually has beautiful red flowers, but sometimes has white flowers. If she crosses plants A and B as shown here, 50% of the offspring will have red flowers.
True
False
True or False: Mistakes can happen during replication of genes.
True
False
In a Punnett square, a capital letter stands for a ____ allele
recessive
homozygous
dominant
heterozygous
In a Punnett square, a lower case letter stands for a ____ allele
recessive
homozygous
dominant
heterozygous
____ is the study of how traits are passed from parents to offspring.
Fertilization
Seed production
Genetics
Selective breeding
Parents pass their traits down to their offspring through their __________.
Daughter cells
Son cells
Body cells
reproductive cells
A man and a woman want to have a child, but the man is heterozygous (Cc) for a recessive trait that causes a fatal illness. What is the probability of a child’s inheriting the trait?
0%
25%
50%
75%
100%
A man and a woman want to have a child, but the man is heterozygous (Cc) for a recessive trait that causes a fatal illness. What is the probability of a child’s NOT inheriting the trait?
0%
25%
50%
75%
100%
