WorksheetsGenetics
Total questions: 35
Worksheet time: 3600secs
What is the result of one sex cell undergoing meiosis in humans?
one sex cell
two sex cells
four sex cells
eight sex cells
Which of these choices should be placed in the box with the question mark?
AA
Aa
aa
AA or aa but not possible to determine which one
Which of these choices is true about individual 4 in generation II?
male and the father of individual 3 in generation III
male and the son of individuals 1 and 2 in generation I
female and the mother of individual 3 in generation III
female and the daughter of individuals 1 and 2 in generation I
What percent of the offspring would show the recessive trait?
0%
25%
50%
75%
Out of 16, how many offspring should you expect to be green and wrinkled?
3/16
8/16
9/16
1/16
which of the following is an acquired trait in humans?
eye color
table manners
hair color
blood type
which of these statements is correct according to the diagram?
Each offspring has a 25% probability of inheriting the alleles PP.
Each offspring has a 25% probability of inheriting the alleles Pp.
Each offspring has an equal probability of inheriting the alleles PP or Pp.
Each offspring is more likely to inherit pp than any other combination of alleles.
Alisha and Rob would like to have children. A genetic counselor tells them that they are both carriers of a certain genetic disease. What does this mean?
a. They are both immune to the disease, and it is very likely that their children will also be immune to it.
There is a very high probability that one or both of them will develop the disease at some point in the future.
They both have an allele for the disease and could pass this allele on to their children, even though neither of them has the disease.
They both have the disease, but there is a very low probability that they will pass it on to their children.
which of these statements is true of sexual reproduction?
It requires two parents and results in offspring that have characteristics of each parent.
It requires one parent and results in offspring that are genetically identical to the parent.
It requires two parents and results in offspring that are genetically identical to one parent.
It requires one parent and results in offspring that have half of the genes of the parent.
which reason BEST explains why reproduction is necessary?
The survival of every species depends on the ability of organisms to reproduce.
Reproduction increases the genetic variability of the species.
Environmental conditions might change.
Reproduction requires complex body structures.
Which of these lists includes three types of asexual reproduction?
budding, spore formation, fertilization
binary fission, budding, spore formation
fertilization, vegetative reproduction, binary fission
spore formation, fertilization, vegetative reproduction
The diagram below shows the results of crossing a pea plant with smooth seeds and a pea plant with wrinkled seeds.
What can be determined from the results of the experiment?
Smooth shape and wrinkled shape are both recessive traits.
Smooth shape and wrinkled shape are both dominant traits.
Smooth shape is a dominant trait, and wrinkled shape is a recessive trait.
Smooth shape is a recessive trait, and wrinkled shape is a dominant trait.
Which of these choices is a product of mitosis?
egg
sperm
sex cell
skin cell
Which of the following is/are heterozygous?
dd
DD
both A and B
Dd
Which set of terms correctly fills in blanks a and b in the first row of Candy's chart?
a: Mitosis, b: Budding
a: Meiosis, b: Cytokinesis
a: Mitosis, b: Meiosis
a: Meiosis, b: Mitosis
The image given shows the chromosomes in a human cell.
Which pair of chromosomes controls the sex of the offspring?
1
9
20
X/Y
On a Punnett square, what do the letters at the top and left side represent?
a. The letters at the top represent alleles of the parents. The letters on the left represent alleles of the offspring.
b. The letters at the top represent alleles of the male offspring. The letters on the left represent alleles of the female offspring.
c. The letters at the top represent alleles of one parent. The letters on the left represent alleles of the other parent.
d. The letters at the top represent alleles of the female offspring. The letters on the left represent alleles of the female parent.
During a lab experiment, Rahul looks at six unlabeled slides showing different stages of the cell cycle. The teacher asks Rahul to place the slides in order, starting with interphase. In what order should Rahul place the slides?
a. interphase - cytokinesis - prophase - anaphase - metaphase - telophase
b. interphase - anaphase - metaphase - prophase - telophase - cytokinesis
c. interphase - telophase - anaphase - metaphase - prophase - cytokinesis
d. interphase - prophase - metaphase - anaphase - telophase - cytokinesis
What is the name of the molecule that contains genes and determines the characteristics of living things?
centromere
allele
protien
DNA
Which of these lists presents the stages of the cell cycle in the correct order?
a. interphase, mitosis, cytokinesis
b. cytokinesis, mitosis, interphase
c. mitosis, interphase, cytokinesis
d. interphase, cytokinesis, mitosis
Which of the following is not a phenotype?
brown eyes
dd
dimples
red hair
Kara has a plant that produces either purple or white flowers. She crosses a plant that has two recessive alleles for white flowers with a plant that has two dominant alleles for purple flowers. Which result would be true of the offspring?
a. All of the offspring would be white flowers.
b. Half of the offspring would be white flowers and half would be purple flowers.
c. The offspring would be neither white or purple.
d. All of the offspring would be purple flowers.
Why does cell division take place in single-celled organisms?
to grow
to repair
to reproduce
for development
A snapdragon plant with red flowers is crossed with a snapdragon plant with white flowers. The offspring produced have pink flowers. Which of these conditions does this cross illustrate?
codominance
nondominance
complete dominance
incomplete dominance
Human blood types A and B show codominance. The alleles determine what kind of antigens are produced on the red blood cells. What blood type does a person that has inherited an A allele and a B allele have?
type A
type B
type AB
type O
Assume that shaded individuals have Cystic Fibrosis ( cc). Which of these statements is true about individual 2 in generation II?
a. Individual II-2 must have Cystic Fibrosis ( cc).
b. Individual II-2 must be a carrier of Cystic Fibrosis ( Cc).
c. Individual II-2 is not affected and is not a carrier ( CC).
d. None if the above.
What is the longest stage of the cell cycle?
cytokinesis
interphase
telophase
metaphase
Mitosis is the main mechanism of asexual reproduction. Cassie draws flashcards for each phase of mitosis and cytokinesis. Before she can label the backs of the flashcards, Cassie drops them onto the floor. The flashcards get mixed up as shown below.
In what order should Cassie place the cards to show mitosis and cytokinesis from start to finish?
a. 1 - 2 - 3 - 4 - 5
b. 2 - 4 - 5 - 1 - 3
c. 3 - 1 - 5 - 2 - 4
d. 4 - 2 - 1 - 5 - 3
What is an acquired trait?
a. a trait that is the result of many genes
b. a trait that is learned or gained from one’s environment
c. a trait that is passed from parents to offspring
d. a trait that is an intermediate of the traits of both parents
Which of these choices is an example of a dominant trait?
a. a trait that is seen in every offspring
b. a trait that is due to environmental influence
c. a trait that is present only when an offspring inherits two dominant alleles
d. a trait that is present when an offspring inherits at least one dominant allele
Which of these statements is true of asexual reproduction?
a. It produces offspring genetically identical to each other and requires one parent.
b. It produces offspring genetically identical to each other and requires two parents.
c. It produces offspring genetically different from each other and requires one parent.
d. It produces offspring genetically different from each other and requires two parents.
If a sexually reproducing organism has 28 chromosomes in its body cells, how many chromosomes did it inherit from each parent?
7
14
16
28
Raylene inherited certain physical characteristics from her parents. Which of the following is not an inherited characteristic?
blue eyes
wavy, red hair
dimpled cheeks
long fingernails
How do the chromosomes in a sex cell differ from those in a body cell?
a. A sex cell has half the number of chromosomes as a body cell.
b. A sex cell has twice the number of chromosomes as a body cell.
c. A sex cell has chromosomes that are half as long as those in a body cell.
d. A sex cell has chromosomes that are twice as long as those in a body cell.
Which of these choices best describes a pedigree?
a. an illustration that shows the genetic diversity among different species
b. a hypothesis that explains why genes are recessive or dominant
c. a chart or "family tree" that tracks which members of a family have a particular trait
d. a diagram that lists alleles of two parents and shows the possible allele combinations of their offspring
