Meiosis
This is a pair of chromosomes with the same size, length, centromere position, and genetic information.
Homologous Chromosomes
Organisms that produce offspring of the same variety over many generations of self pollination.
True Breeding
What type of plant did Mendel study?
Pea plants
Many traits are produced through multiple (blank) acting together.
Genes
What does complete dominance mean?
Homozygous dominant and heterozygous individuals are phenotypically the same.
These cells are haploid, meaning they have one set of each chromosome.
Gametic cells
NAME BOTH:
An organism that has a pair of identical alleles for a gene is...
An organism that has two different alleles for a gene is....
Homozygous and heterozygous
NAME BOTH
The genetic makeup of an organism is its...
An organism's physical appearance determined by its genes is its...
Genotype and phenotype
When a red and white flower cross, they produce pink offspring. This is an example of...
Incomplete dominance
A red and a white flower cross and produce offspring with some white petals, some red petals. This is an example of...
What are the three key events in meiosis?
Synapsis and crossing over, tetrads line up, homologous pairs separate
This law states: The two alleles for the same trait separate during gamete formation and end up in different gametes.
The Law of Segregation
A monohybrid cross involves two parents that are each (blank) for a single trait.
Heterozygous
This is when the phenotypic expression of a gene at one locus affects a gene at another locus.
Epistasis
The effect of two or more genes acting on a single phenotype is called...
Polygenic inheritance
This is when homologous chromosomes exchange genetic material.
Crossing over
In a cross between two pea plants, one with round seeds (Rr) and one with wrinkled seeds (rr), what is the probability that their offspring will have round seeds?
50%
If a trait is X-linked, then (blank) are more commonly affected than (blank).
Males, females
A woman with type A blood has a child with a man who has type B blood. With this limited information, what are possible genotypes for the woman? For the man?
Woman could either be IAIA or IAi
Man could either be IBIB or IBi
One map unit is equivalent to a (blank) recombination frequency.
1%
Where (specifically) does crossing over occur?
At the chiasmata
In a pedigree chart, if a trait skips generations and affects only males, what type of inheritance pattern is suggested?
X-Linked Recessive
In a pedigree chart, if a trait appears in every generation and affects males and females equally, what type of inheritance pattern is likely being displayed?
Autosomal dominant.
If an affected father crosses with a normal mother, are the sons or the daughters affected? Or both?
Only the sons
The inactive X chromosome in each cell of a female condenses into a...
Barr Body