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WorksheetsReproduction and Genetics Review
Total questions: 66
Worksheet time: 2hrs 55mins
What is the function of this cellular part to the right of the chromosome?
to store heredity information
to make energy from
sunlight
to decompose waste
products
to transport digested
material
What is the molecule that contains the genetic information of a cell?
DNA
carbohydrates
lipids
proteins
Each cell in organisms contains a set of hereditary information that gets passed from one generation to the next. The genes in all organisms contain instructions needed to make offspring. Which statement describes heredity in animals?
Offspring receive genetic
traits from a single parent only.
Offspring show recessive traits only
Offspring receive genes with traits that are always physically observable
Offspring receive genes from each parent, which contribute to the traits in the offspring
A teacher uses the diagram below to help him explain heredity to a group of students. Which of these combinations identifies the appropriate labels in the order as shown in the diagram (1, 2, 3)?
chromosome, DNA, gene
chromosome, gene, DNA
DNA, chromosome, gene
DNA, gene, chromosome
What is the name of the DNA segment that contains information for a specific trait?
RNA
nuclei
genes
chromosomes
The allele for cheek dimples (D) is dominant to the allele for no cheek dimples (d). Ben and Melissa both have dimples. Ben’s genotype is DD and Melissa’s genotype is Dd. What percentage of Ben and Melissa’s future children will have dimples?
0%
25%
50%
100%
Punnett squares help identify genotypes and phenotypes of possible offspring and their genes.
Look at the Punnett square. Which of the following identifies the pea with a homozygous dominant genotype and its probability of occurring?
GG, 1:4
Gg, 2:4
GG, 4:1
gg: 4:1
In pea plants, purple flowers (P) are dominant to white flowers (p).
If one parent has a genotype of Pp and one parent has a genotype of pp, what is the probability of the offspring having purple flowers?
0%
50%
75%
100%
People who can curl their tongues have a dominant trait. People who cannot curl their tongues have a recessive trait. If two parents are recessive for tongue curling, what does that mean about how the trait for tongue curling will appear in their offspring?
It means the trait will show up 0% of the time
It means the trait will show up 25% of the time
It means the trait will show up 75% of the time.
It means the trait will show up 100% of the time
Like mitosis, meiosis begins with one parent cell. How many final daughter cells are produced during the process of meiosis?
four daughter cells, each with half of the parent cell's chromosomes
four daughter cells, each identical to the parent cell
two daughter cells, each with half of the parent cell's chromosomes
two daughter cells, each identical to the parent cell
Which of these events happens during sexual reproduction only?
DNA is copied in the parent organism before cell division.
A parent organism splits in half and makes two offspring with identical DNA
The DNA from two parents combines to create an offspring with unique DNA
Offspring are produced with DNA that is identical to either one parent or other.
Which statement best describes the result of meiosis?
The daughter cells have half the number of chromosomes
The daughter cells have twice the number of chromosomes
The daughter cells have the same number of chromosomes
The daughter cells have four times the number of chromosomes
A common fruit fly has eight chromosomes in a normal body cell. After a cell undergoes mitosis, how many chromosomes will each new cell have?
2
4
8
16
Which of the following types of cells is a product of meiosis?
egg cell
skin cell
stomach cell
red blood cell
Dogs that have parents of different breeds are very popular. Pomchis have one Pomeranian parent and one Chihuahua parent. Labradoodles have a Labrador retriever parent and a poodle parent. Crossbred dogs are hybrids and have a combination of traits from both parents’ breeds.
What genotype would the puppies have if two labradoodles were bred together?
homozygous
purebred
heterozygous
F1 generation
Mitosis and meiosis both produce new cells through cell division. However, the division process differs due to the kind of cell being produced. How is meiosis different from mitosis?
Mitosis produces 4 daughter sex cells with half the number of chromosomes which divide twice. Meiosis produces 2 daughter body cells with the full number of chromosomes which divide once.
Mitosis produces 2 daughter sex cells with half the number of chromosomes which divide twice. Meiosis produces 4 daughter body cells with the full number of chromosomes which divide twice.
Meiosis produces 4 daughter sex cells with half the number of chromosomes which divide twice. Mitosis produces 2 daughter body cells with the full number of chromosomes which divide once
Meiosis produces 2 daughter sex cells with the full number of chromosomes which divide once. Mitosis produces 4 daughter body cells with half the number of chromosomes which divide twice.
Normal red blood cells slide easily through narrow blood vessels. In sickle cell disease, many red blood cells change to a crescent shape like a slender moon. Crescent-shaped blood cells cause blockages in blood vessels. These blockages decrease the transport of oxygen. People with sickle cell disease often have sharp pains due to the lack of oxygen in parts of the body.
Sickle cell disease is caused by an abnormal type of red blood cell gene inherited by the parents. What is the name for different forms of the same gene?
recessive genes
dominant genes
traits
alleles
Asexual reproduction has certain advantages. This sort of reproduction needs only one parent and can occur by budding and fragmentation. What is an advantage of sexual reproduction over asexual reproduction?
exact copy of the genes
reproduce quickly
greater genetic variation
finding a mate
The backbone of DNA is made of ___________ and ___________.
Nucleotides and sugar
Nucleotides and phosphate
Phosphate and sugar
Phosphate and bases
Which of the following about meiosis is NOT true?
They produce gametes with half amount of DNA as body cells
It produces 4 haploid sex cells
Is only done in eukaryotes
Produces body cells
The diagram above shows the four bases present in DNA.
Which of the following correctly identifies a base pair?
A-T
A-G
G-T
C-T
The diagram above shows the results of crossing a pea plant with round 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.
Having attached or unattached earlobes is an inherited trait. The figure below shows an attached earlobe and the two alleles responsible for this trait.
Which statement correctly describes the genotype and phenotype?
The genotype is the attached earlobe, and the phenotype is e.
The genotype is e, and the phenotype is the attached earlobe.
The genotype is the attached earlobe, and the phenotype is ee.
The genotype is ee, and the phenotype is the attached earlobe
Look at the diagram shown above. The alleles for the parents are missing.
The parents in the diagram above have which of these alleles?
DD and Dd
Dd and Dd
Dd and dd
DD and dd
The two major kinds of reproduction are ____________ and ____________.
Asexual & sexual
Division & multiplication
Fragmentation & budding
Linear & non-linear
Reproduction that requires two parents and has offspring that are genetically different from the parents & from each other is called:
Sexual reproduction
Asexual reproduction
Multiplication
Division
An organism's ____________ is its physical appearance.
Phenotype
Genotype
Allele
Punnett square
If an organism has two of the same kind of allele for a trait, it is considered ____________.
Homozygous
Heterozygous
Monolithic
Dichotomous
If B = brown hair, and b = red hair, then an organism with the genotype Bb would have a phenotype of:
Brown hair
Red hair
A mixture of brown and red hair
Type of asexual reproduction that produces two identical cells
vegetative propagation
binary fission
budding
regeneration
Type of asexual reproduction where the offspring grows out of the parent organism
vegetative propagation
binary fission
budding
regeneration
Type of asexual reproduction that helps an organism regrow a damaged body part
binary fission
vegetative propagation
budding
regeneration
Type of asexual reproduction when one plant grows new plants
vegetative propagation
budding
regeneration
binary fission
What should you use to predict the traits of offspring when you know the genes of two parents?
a graph
a flow chart
a data table
a Punnett square
What is the probability of bb offspring?
1/4
2/4
0/4
4/4
Which of the following best defines heredity?
the passing of genetic information from one generation to the next
the joining of sex cells to form the first cell of a new organism.
the cycle through which an organism grows from a young form to a mature form.
the technology that enables scientists to insert genetic information from one organism into another.
What parts of a cell are most involved in determining the shape of your face?
Genes, chromosomes, and nucleus
Cytoplasm, chloroplasts, and genes
Vacuoles, nucleus, and chromosomes
Chromosomes, chloroplasts, and vacuoles
The hydra is a very small, simple animal that lives in water. Hydras reproduce asexually by budding,
a process in which a bud breaks off an adult hydra and floats away. Which of these describes a hydra?
A hydra bud contains genetic material from its two parents.
A hydra bud is genetically identical to the parent hydra.
A hydra bud has different mutations than the parent hydra.
A hydra bud has half as much genetic material as the parent hydra
A starfish break off its arm so that another star fish grows is an example of
Budding
Fragmentation
Pollination
If we think of DNA as a ladder, which parts are the steps of the ladder?
the nitrogen base pairs
the phosphate-sugar backbone
the genes
What is the matching nitrogen base sequence for the gene below?
A-
T-
C-
T-
G-
T-
G-
C-
A-
T-
A-
G-
Bundled up, organized DNA is called a
gene
trait
chromosome
nucleotide
AATCATGGA
Which of the following is not an inherited trait?
blood type
a broken leg
hair color
leaf shape
This trait always shows up in an organism when the allele is present
dominant allele
codominance
probability
recessive allele
What is a gene?
A bundle (like a hot dog bun) that the DNA is packed into
something inside the nucleus
a section/piece of DNA
all of your DNA
What is the name of this structure found in our nucleus?
chromosome
gene
ribosome
DNA
