1
What can we observe in order to visualize Mendel's Law of Segregation?
- homologous chromosomes separating during meiosis I
- sister chromatids separating during mitosis
- the replication of DNA
- homologous chromosomes separating during meiois II
homologous chromosomes separating during meiosis I
2
A white-eyed female Drosophila is crossed with a red-eyed male Drosophila. Which statement below correctly describes the results?
- Fifty percent of the females will have red eyes.
- None of the females will have red eyes.
- None of the females will have white eyes.
- Twenty-five percent of the females will have white eyes.
None of the females will have white eyes.
3
In humans, the chromosome contribution from both parents determines sex because the offspring uses all the parents' chromosomes.
- True
- False
False
4
Aneuploidy results in a situation in which the chromosome number is either 2n+1 or 2n-1.
- True
- False
True
5
In general, the frequency with which crossing over occurs between two linked genes depends on what?
- the characters the genes code for
- whether the genes are dominant or recessive
- how far apart they are on the chromosome
- whether the genes are on the X or some other chromosome
how far apart they are on the chromosome