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WorksheetsGenetics, DNA & Reproduction review
Total questions: 36
Worksheet time: 4hrs 0mins
Joseph created a punnet square.
Which of the following correctly states the offspring probabilities?
100% heterozygous
50% heterozygous, 50% homozygous dominant
50% heterozygous, 50% homozygous recessive
75% homozygous dominant, 25% homozygous recessive
Amy and Jose noticed that some puppies had a variety of black and white coat colors. Which of the following best explains why these puppies had inherited different coat colors?
The puppies receive different combinations of DNA from both of their parents.
The puppies randomly receive DNA that is not influenced by their parents.
The puppies randomly receive DNA from only one of their parents.
The puppies receive an exact copy of both parent's DNA.
The pedigree below shows a two generation family. Both parents carry the trait but only one presents the trait.
Based on the information shown in the pedigree, what is the probability of individual II-1 being heterozygous?
25%
50%
100%
75%
Two individuals that are heterozygous for curly hair reproduce. What is the probability that their offspring will express the recessive trait of straight hair?
25%
0%
75%
50%
The picture below is a single-celled protist undergoing reproduction resulting in two identical cells.
Which statement below describes this process?
Asexual reproduction by meiosis.
Asexual reproduction by mitosis.
Sexual reproduction by mitosis.
Sexual reproduction by meiosis.
Some fungi are able to reproduce both sexually and asexually. Which type of reproduction would best benefit the fungi if the environment is changing?
Sexual reproduction can produce many offspring quickly in a changing environment.
Asexual reproduction can occur quickly, so it wouldn't matter if the environment changes.
Sexual reproduction would produce genetically different offspring which gives the fungi a greater chance to survive.
Asexual reproduction would produce genetically identical offspring which gives the fungi a greater chance to survive.
How do the structures in the image below play a role in heredity?
Genes determine the type of DNA we will receive from our parents which are located on our chromosomes.
Traits produce DNA when reproduction occurs passing genes to the next generation.
DNA produces genes which are types of cells located in the chromosome.
Chromosomes contain DNA where the genes that store the information about our traits are located.
Which of the following correctly describes the difference between mitosis and meiosis?
Meiosis produces four genetically different cells and mitosis produces two genetically identical cells.
Mitosis produces four genetically different cells and meiosis produces two genetically identical cells.
Meiosis produces two genetically identical cells and mitosis produces two genetically different cells.
Mitosis produces two genetically identical cells and meiosis produces two genetically different cells.
The two major kinds of reproduction are ____________ and ____________.
Asexual & sexual
Division & multiplication
Fragmentation & budding
Linear & non-linear
____________ reproduction involves one parent, & produces offspring that are genetically identical to the parent & to each other.
Asexual
Sexual
Division
Multiplication
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
A ________ is a chunk of DNA that determines a trait, and which offspring gain from their parent(s).
Gene
Trait
Nucleus
Punnett square
An allele is:
A particular version of a gene
A really yummy flavor of ice cream (Mr. Gill likes sprinkles on his)
The part of the cell where DNA is kept
Always produced in asexual reproduction
An organism's ____________ is its physical appearance.
Phenotype
Genotype
Allele
Punnett square
An organism's allele combination is its:
Genotype
Phenotype
Inheritance
Sequence
If an organism has two of the same kind of allele for a trait, it is considered ____________.
Homozygous
Heterozygous
Monolithic
Dichotomous
An organism that has two different alleles of a gene is referred to as ____________.
Heterozygous
Homozygous
Dichotomous
Monochrome
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
A trait that will always show up, as long as there is at least one of its alleles present, is called:
Dominant
Recessive
Powerful
Weak
A trait that will only show up if its allele is the only kind of allele that's present is called:
Dominant
Recessive
Powerful
Weak
If an organism shows a blending of two traits (Example: Red flowers & white flowers combine to make pink flowers), this is referred to as:
Incomplete dominance
Codominance
Mixed-up dominance
Partial recessiveness
If an organism shows two versions of a trait at the same time (Example: A red flower blossom with white splotches on the petals), this is called
Incomplete dominance
Codominance
Mixed-up dominance
Partial recessiveness
The __________ is the part of the cell that contains DNA.
Nucleus
Vacuole
Golgi apparatus
Endoplasmic reticulum
Specific characteristic of an individual that can be passed on.
Trait
Asexual Reproduction
Sexual Reproduction
Gamete
Which are true of Mitosis?
Mitosis is a type of asexual reproduction with identical offspring
Mitosis creates 4 haploid (sex cells)
Mitosis creates 2 diploid cells
Mitosis is used for growth and repair
This is a cross between two what kinds of parents?
Homozygous Dominant
Heterozygous
Homozygous recessive
If both parents have brown hair, what percentage of the offspring will have brown hair?
25%
50%
75%
100%
The genetic ration for the F1 Generation will be:
1 Homozygous dominant; 2 heterozygous; 1 homozygous recessive
4 heterozygous
2 heterozygous; 2 homozygous
2 homozygous dominant; 2 homozygous recessive
An accurate inference about individual II2 is that she is
homozygous dominant for the disorder
homozygous recessive (does not have the disorder)
a man
heterozygous
which of the following are haploid cells?
sperm
gametes
egg
germ cells
A heterozygous genotype has
two alleles that are the same
two alleles that are different
Human have ______ pairs of chromosomes in their body cells.
46
23
The passing of traits from parent to offspring is called ______.
Genetics
Heredity
The study of heredity is called Genetics.
True
False
The trait that always appears in the offspring if it is present.
Dominant
Recessive
Hybrid
Incomplete Dominance
A special grid used to predict the possible outcomes of different crosses.
Genotype
Offspring
Probability
Punnett Square
