Quiz 1

Question 1

Which of the sexual life cycle has the hyphae from two compatible organisms grow towards each other to meet and form the zygosporangium?

Diploid-dominant
Haploid-recessive
Haploid-dominant
Alternation of generations

Answer 1

Haploid-dominant

Question 2

All of the following statements regarding mitosis is true, EXCEPT:

The stage where chromosomes are lined up on the equator is during anaphase.
A cell needs to go through the G1 gap phase, S-phase, and G2 gap phase before reaching the M-phase.
The order of mitosis is Prophase -> Metaphase -> Anaphase -> Telophase.
The site where spindle fibers attach to the centromere is called the kinetochore.

Answer 2

The stage where chromosomes are lined up on the equator is during anaphase.

Question 3

The first division of meiosis separates which of the following?

Spindle fibers
Homologous chromosomes
Kinetochores
Sister chromatids

Answer 3

Homologous chromosomes

Question 4

What is true regarding recombinant frequencies?

Crossover events are more likely to occur when there’s a short distance between two genes.
The distance between genes is determined by map unit (mu).
Crossovers occur during Meiosis II at a fixed position.
There is no correlation between the frequency of crossovers between two genes and the distance between them.

Answer 4

The distance between genes is determined by map unit (mu).

Question 5

What is a difference between Mitosis and Meiosis?

Meiosis will produce four haploid daughter cells, whereas mitosis will produce two diploid daughter cells.
All of the above
In mitosis, cells divide one time. In meiosis, cells divide two times.
The daughter cells in mitosis are genetically identical but are not in meiosis.

Answer 5

All of the above

Question 6

Which law of inheritance states that each pair of alleles segregates independently of other pairs during gamete formation?

Law of Independence Assortment
Law of Segregation
Law of Dominance
Law of Recessive

Answer 6

Law of Independence Assortment

Question 7

What is false regarding a Punnett square?

It calculates the probability of inheritance.
The dominant allele is usually represented by a lowercase letter and a recessive allele by an uppercase letter.
It operates under the idea that each gamete carries only one allele for each trait.
It shows all the possible outcomes of a genetic cross.

Answer 7

The dominant allele is usually represented by a lowercase letter and a recessive allele by an uppercase letter.

Question 8

What is a Test Cross?
Correct!

An organism of dominant phenotype but unknown genotype is crossed with a homozygous recessive individual.
An organism of dominant phenotype but unknown genotype is crossed with a heterozygous dominant individual.
An organism of recessive phenotype but unknown genotype is crossed with a homozygous recessive individual.
An organism of dominant phenotype but unknown genotype is crossed with a homozygous dominant individual.

Answer 8

An organism of dominant phenotype but unknown genotype is crossed with a homozygous recessive individual.

Question 9

What tool do you use if you want to analyze the pattern of inheritance of a specific trait throughout a family?

Histogram
Backcross
Punnett square
Pedigree

Answer 9

Pedigree

Question 10

Which of the following are limitations of Mendel’s Law of Inheritance?

A trait may be determined by multiple genes.
All of the above
Some traits can be determined by genes located on the same chromosome.
There are some cases where there is a blending type of inheritance or where two dominants can form a co-dominance.

Answer 10

All of the above