Mr. Erb has brown eyes. Mr. Erb's sister also has brown eyes. Mr. Erb's younger brother has blue eyes. What can we infer about the genotype of the Mr. Erb's mom?
She has two recessive traits for blue eyes
100
Coat color in rabbits is determined by a single gene that has multiple alleles. (Multiple alleles is underlined)
True
100
Explain what homologous chromosomes are
Chromosomes that come from each parent
100
How many cells are found at the end of a meiosis (after going through PMAT twice) and what are those cells called?
4 haploid cells/4 gamete cells
200
What principle states that during gamete formation genes for different traits separate without influencing each other’s inheritance?
Independent Assortment
200
Wavy hair in an offspring is a result of someone with curly hair and straight hair crossing. The description of the offspring can best be described by what genetic word?
Phenotype
200
A trait in an unidentified plant is controlled by one gene that has two alleles. One allele is dominant over the other. According to Mendel’s principles, 25% of the off spring made from a cross between two heterozygous plants will show the recessive trait. (25% is underlined)
True
200
Compare/Contrast mitosis and meiosis
Answers may vary
200
If an organism’s diploid number is 12, its haploid number is
6.
300
A mule is the result of a cross between a donkey and a horse. A mule is a
hybrid
300
What would the all the phenotypes be of a heterozygous tall plant crossed with a homozygous short plant? (Make sure to tell me how many would be tall and short if there are any tall and short ones)
2 would be tall and 2 would be short. You can also say 50% would be tall and 50% would be short.
300
The probability that a gamete produced by a pea plant heterozygous for stem height (Tt) will contain the recessive allele is 100%. (heterozygous is underlined)
False - homozygous
300
You have found the Erb bonus. This grants each player on your team +2 points on the next test.
Explain why gametes are considered haploid and not diploid.
Gametes are haploid carrying half of the amount of chromosomes where each set of chromosomes comes from each parent.
300
What is the name of the plant that produces pink flowers when a red flower and white flower are crossed?
4 o'clock flower. Do you want the bonus question?
400
The principles of probability can be used to...
predict the outcome of your children (answers may vary)
Do you want to the bonus question?
400
How many alleles for each trait are generally passed on from the mother or the father?
One
400
Mitosis is a form of asexual reproduction and therefore produces haploid cells. (Haploid is underlined)
False - Diploid cells
400
When would one have to use the foil method when completing a punnet square? Give me an example
When you are doing a cross with two traits. Ex: Hair color and eye color.
400
Why did Thomas Hunt Morgan use fruit flies in his studies?
a. Fruit flies produce a large number of offspring.
b. Fruit flies take a long time to produce offspring.
c. Fruit flies share certain characteristics with pea plants.
d. Fruit flies have a long life span.
A.
500
Organisms that have two identical alleles for a particular trait are said to be...
Homozygous
500
Linked genes...
a. are never separated.
b. assort independently
c. are on the same chromosome
d. are always recessive.
assort independently
500
The plants that Gregor Mendel crossed to produce the F1 generation made up the F2 generation. (F2 is underlined)
False - Parental Generation
500
Explain to me the combination of gametes for the following cross for each organism:
RrYy x RRyy
Organism One(RrYy): RY, Ry, rY, ry
Organism Two(RRyy): Ry, Ry, Ry, Ry
500
What principle states that during gamete formation genes for different traits separate without influencing each other’s inheritance?
a. principle of dominance
b. principle of independent assortment
c. principle of probabilities
d. principle of segregation