Cellular Respiration occurs in 4 major stages: Glycolysis, NADH
degeneration, Citric acid (or Kreb's) cycle and Electron Transport
Chain. Glycolysis occurs in the cytosol or cytoplasm of the cell. If
oxygen is present, then the next three stages would occur, otherwise
lactic acid or alcohol fermentation would occur. NADH degenration and
Citric acid cycle occur in the matrix of the mitochondria while Electron
Transport Chain occurs in the intermembranal space of the mitochondria.
Most of cell respiration occurs in the mitochondria though. Hope this
helped!
I must say this is a very complete answer but if i might
add,of every part of a cell involved in cellular respiration,the only
organelle is the mitochondria meaning that is the answer.
Answer:
Scarlet should become assertive and talk to her friend and let her know that she no longer wants to let her copy her notes. Scarlet should state that the friend not listening in class is a choice and with every choice made there are consequences.
If the friend does not respect Scarlet's decision, Scarlet should make a choice of whether is becomes passive and carry on allowing her friend to copy her notes or report her to the teacher.
Explanation:
When cells divide during meiosis, homologous chromosomes are randomly distributed during anaphase I, separating and segregating independently of each other. This is called independent assortment. It results in gametes that have unique combinations of chromosomes.
<em>Crossing over creates new combinations of genes in the gametes that are not found in either parent, contributing to genetic diversity.</em>
Answer:
Allopatric speciation
Explanation:
Allopatric speciation refers to the geographic separation of a continuous genetic background, originating two or more new geographically isolated groups. These divergences of the original population might be related to migration in different directions, extinction of geographically intermediate populations, or geological events. During these events of speciation, emerging new barriers impede genetic flow between groups, as the two new populations that are separated can not get together and mate anymore. These barriers might be geographical or ecological.
Different stages are involved in the allopatric speciation process:
• The emergence of the barrier.
• Interruption in the genetic flow
• Slow and gradual differentiation due to the occurrence of mutations in each population and their accumulation in time.
• Genetic divergence by natural selection and reproductive isolation, impeding the two groups to mate even if the barrier disappears.
• Prezigotic isolation mechanisms favored by selection a secondary contact between the new species occurs.
The Panama isthmus is an example of allopatric speciation caused by an extrinsic geological barrier that interrupted the genetic flow between species driving to genetic changes and reproductive isolation.
Two different groups that evolved in allopatry might meet again in secondary contact if the barrier that separated them, disappears. In the Panama isthmus example, the groups that did mate, could not produce any fertile progeny because of postzygotic reproductive isolation. And the groups that did not mate, were not attracted to each other because of prezygotic reproductive isolation.
Answer:
D. 1/2
Explanation:
By making a monohybrid punnet square you come out with these pairs of Alleles: Ee, ee,ee,and Ee. Which will give you 1/2 probability to get white eyes or even red eyes.
