Meiosis
Cells containing one set of chromosomes are called _____, while cells containing two sets are called diploid.
haploid
What is the term for an organism's observable physical traits?
phenotype
This pattern of inheritance describes a situation where the heterozygote exhibits a phenotype intermediate between the two homozygous phenotypes.
incomplete dominance
Genes located in close proximity on the same chromosome are said to be _____ genes.
linked
Chi square tests allow us to measure the extent to which the observed counts differ from the _____ counts
expected
What are matched pairs of chromosomes containing the same genes in identical locations called?
Homologous Chromosomes
Diploid organisms that have two identical alleles for a given gene are described as _____ for that gene.
homozygous
What is the term for the simultaneous expression of both alleles in a heterozygote, such as blood type in humans?
codominance
A recombination frequency of _____ indicates that two genes are perfectly unlinked and assort independently.
50%
A student compares the ratios of three different flavors of candy in a bag. How many degrees of freedom are there in this scenario?
2
During which phase of interphase is the DNA of the chromosomes replicated?
S Phase
Who is considered the father of modern genetics?
Gregor Mendel
A gene present on the X chromosome but not on the Y chromosome is said to be _____.
X-Linked
The failure of homologous chromosomes or sister chromatids to separate during meiosis is called _____.
nondisjuction
A student calculates a critical value of 2.6 with 1 degree of freedom. Should she accept the null hypothesis?
yes
The exchange of chromosomal segments between homologous chromosomes is known as _____.
crossing over
A trait that is expressed when only one allele is present
Dominant trait
Why are recessive x-linked traits more common in males than females?
Because they have only one allele for any X-linked characteristic.
Down syndrome is a human genetic disorder caused by trisomy of which chromosome?
21
What does a confidence interval of p=0.05 mean?
You are 95% sure your observed data fits your expected data.
In which phase of meiosis are homologous chromosomes pulled apart, while sister chromatids remain attached?
Anaphase 1
What is the expected phenotypic ratio of the F2 generation from a monohybrid cross of true-breeding parents with simple dominance?
3 dominant : 1 recessive (3:1).
When one gene masks or interferes with the expression of another gene, this interaction is known as _____.
epistasis
The process by which one X chromosome in each cell of a female mammal condenses into a dormant structure is called _____.
X-Inactivation
In a certain species of fish, blue scales are dominant to white scales. A heterozygous mother and homozygous recessive father have 30 offspring. 10 are orange and 20 are blue. Should the accept the null hypothesis?
Yes. Chi sqaure value = 3.34 which is less than the critical value of 3.84