Why is it important for gametes to be haploid? (1 point)
It is impossible for them to be diploid
because reproduction does not result in
diploidy.
They fuse to form a diploid organism so
that there is the expected number of
chromosomes.
Neither parent has the full set of genetic
information so each must contribute their
half.
When gametes are made, the diploid cell
splits twice, creating four haploid
organisms.
None of the answer choices provided directly explains why it is important for gametes to be haploid. However, the closest choice is "Neither parent has the full set of genetic information so each must contribute their half." This suggests that gametes being haploid allows for the combination of genetic information from both parents to create a unique offspring with a full set of chromosomes.
The inheritance pattern of one gene will not affect the
inheritance pattern of another gene. This is known as
(1 point)
independent assortment.
crossing over.
genetic variation.
random distribution.
The correct answer is independent assortment. Independent assortment refers to the random distribution of maternal and paternal chromosomes during meiosis, which leads to the inheritance of different traits in an independent manner. This means that the inheritance pattern of one gene is not influenced by the inheritance pattern of another gene.
Which of the following is a difference between phase I
and phase II of meiosis? (1 point)
Phase I results in two haploid daughter
cells and phase II results in four haploid
daughter cells.
Phase I results in daughter cells with 23
chromosomes each and phase II with 46
chromosomes each.
Genetic variations can only occur during
phase II of meiosis.
Anaphase, metaphase, and telophase only
occurs during phase I of meiosis.
The correct answer is "Genetic variations can only occur during phase II of meiosis." During phase I of meiosis, genetic material is exchanged between homologous chromosomes through a process called crossing over, which results in genetic variations. Phase II of meiosis, on the other hand, involves the separation of sister chromatids, resulting in the production of haploid daughter cells. However, genetic variations can occur during both phases of meiosis.
During meiosis, non-sister chromatids may exchange
sections of DNA leading to genetic diversity. What is this
process called? (1 point)
nondisjunction
crossing-over
independent assortment
karyotypes