WorksheetsUnit 7: Genetics & Heredity Review Game
Total questions: 46
Worksheet time: 52mins
Which option below correctly describes the term trait?
Characteristics passed from an offspring to a parent
The letters used to show possible alleles
A version of the trait that can hide a recessive allele
Characteristics passed from a parent to an offspring
When expressing dominant versus recessive alleles, what do we use to represent a recessive trait compared to a dominant trait?
A recessive trait uses an uppercase letter, dominant uses a lowercase letter
A recessive trait uses a lowercase letter, dominant uses an uppercase letter
Both use uppercase letters
Both use lowercase letters
If an organism is heterozygous for a classic mendelian trait, what version of the trait will be observed as the phenotype?
Dominant
Recessive
Glynn has been working to breed spotted horses as they are in high demand for that coat color. When speaking of the horse's coat color what is being described?
Glynn is discussing genotypes but not phenotypes
Glynn is discussing phenotypes and not genotypes
Glynn is describing the breeding pair's genotype as GG
What are Punnett squares used for?
Determine parent genotypes
Determine parent phenotypes
Determine possible offspring genotypes and phenotypes
None of the above
Being a tongue roller (R) is dominant to being a non-roller (r). If we cross a heterozygous individual with a non-roller what is the chance of having heterozygous offspring?
25%
50%
75%
100%
In pea plants having green seeds (G) is dominant to having yellow seeds (g). Two heterozygous pea plants are crossed. What would be the ratio of green to yellow seeds in the offspring?
2:2
1:3
3:1
4:0
Blue birds are crossed with red birds. All offspring are purple. The feather color of these birds is an example of what?
Complete Dominance (Mendelian)
Incomplete Dominance
Codominance
Sex-Linked Trait
If yellow flowers (Y) and red flowers (R) are codominant, what is the chance of getting a red flower if you cross a heterozygous flower with a red flower?
25%
50%
75%
100%
A woman who is homozygous for Type A blood has a child with a man who is heterozygous for Type B blood. What is the chance of their child having Type B Blood?
0%
50%
75%
100%
What do we call traits that are controlled by more than one type of allele?
Incomplete Dominance
Codominance
Sex-Linked Traits
Multiple Alleles
Color blindness is a sex-linked recessive trait. If a heterozygous female has an offspring with an affected male, what is the chance they will have an affected offspring? What biological sex could the offspring be?
100% chance, both male and female
25% chance, male
50% chance, both male and female
75% chance, both male and female
Nondisjunction is related to serious chromosomal disorders in humans. Which of the following is a way nondisjunction impacts chromosomes?
Alters the chromosome structure
Alters the number of chromosomes
Alters the number of gametes produced
Alters the number of zygotes produced
Down syndrome is caused by a type of nondisjunction. What specific chromosome is impacted to produce down syndrome?
1 copy of chromosome 13
3 copies of chromosome 21
3 copies of chromosome 7
An extra sex chromosome is produced
What type of nondisjunction is hown in the karyotype above?
Monosomy
Trisomy
Normal Karyotype
What is the biological sex of the individual in this karyotype?
Male
Female
Sex Chromosome Disorder
How many individual autosomes are in this karyotype?
23
45
44
46
What is the name of the process where gametes are made in a cell division that reduces the number of chromosomes?
Mitosis
Meiosis
Codominance
Multiple Alleles
How many chromosomes will each of the human daughter cells have at the end of meiosis?
12
23
46
92
Which of the following statements is true about Meiosis in humans?
The end product has 2 daughter cells with 46 chromosomes
The end product has 2 daughter cells with 23 chromosomes
The end product has 4 daughter cells with 46 chromosomes
The end product has 4 daughter cells with 23 chromosomes
What type of cell is produced through meiosis?
Somatic (Body) Cell
Gamete
Zygote
None of the Above
Identify the stage of Meiosis in the picture provided.
Metaphase 1
Anaphase 1
Prophase 2
Telophase 2
What stage of meiosis do the individual chromosomes line up at the equator of the cell?
Metaphase 1
Metaphase 2
Anaphase 1
Anaphase 2
Another type of chromosomal disorder that can be seen on karyotypes is called translocation. Which of the following correctly describes this type of disorder?
Patient has an extra copy of a chromosome
Patient is missing one chromosome
Patient has one chromosome break off a piece that attaches to a different chromosome
Scientists are working to find ways of helping individuals who have defective alleles that lead to disorders. What do we call the process of introducing normal genes into the cells of people with defective alleles?
Translocation
Nondisjunction
Gene Therapy
Radiation Therapy
In which phase does crossing-over happen?
Prophase I
Prophase II
Metaphase I
Anaphase II
What phase is this?
Telophase I
Prophase II
Metaphase I
Anaphase II
What phase is this?
Metaphase II
Prophase I
Telophase I
Anaphase I
What phase is this?
Metaphase II
Prophase I
Telophase II
Anaphase I
In humans, the haploid number of chromosomes is ____.
23
46
69
92
Check all of the following that DO occur during Telophase I and cytokinesis.
The separated homologous chromosomes are at opposite poles of the cell.
The cell divides in two.
The chromosomes do not uncoil, since they are getting ready for Meiosis II.
Sister chromatids are pulled away from each other.
True or False. In Meiosis II, there are TWO cells that go through each phase at the same time.
true
false
Which of the following are CORRECT observations about the differences between MITOSIS and MEIOSIS? (Check all that apply.)
Mitosis produces cells that identical to the parent cell.
Meiosis produces cells that have half the number of chromosomes as the parent cell.
All cells go through INTERPHASE as part of the cell cycle, whether it goes to mitosis or meiosis next.
In both types of cell division, the chromosomes are only duplicated once.
Only in Mitosis, do you see chromosomes pair up to form a tetrad.
The products of MEIOSIS have _______ number of chromosomes.
haploid
diploid
Short = S
Short = t
Short = T
Short = tt
Who wins the bet?
