Metaphase is defined as the point at which all of the chromosome pairs are fully condensed, attached to the mitotic spindle, and aligned at the center—termed the metaphase plate.
What are the steps of metaphase?
- The chromosomes are all lined up at the center of the cell by the spindle during metaphase and are ready to divide.
- At the metaphase plate, all the chromosomes line up (not a physical structure, just a term for the plane where the chromosomes line up).
- The two kinetochores of each chromosome should be joined to microtubules coming from opposing spindle poles at this point.
- The cell will verify that all the chromosomes are at the metaphase plate and that their kinetochores are properly linked to microtubules before moving on to anaphase.
- The sister chromatids will split equally between the two daughter cells when the two cells separate in the following phase thanks to the spindle checkpoint, which is where it happens.
- A chromosome that is misaligned or improperly connected will prevent the cell from dividing unless the issue is resolved.
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The answer is electron transport chain. It is a series of complexes that transfer electrons from electron donors to electron acceptors via redox reactions, and couples the electron transfer with the transfer of protons across a membrane. Electrons are transferred from NADH and FADH2 (proton donors) through the electron chain to oxygen, which is reduced to water. This process produces 34 ATP molecules and water from the carrier molecules.
Answer:
4) biological preparedness
Explanation:
Biological preparedness is a phenomenon that humans and animals have developed over time as a survival mechanism. It explains the tendency of humans and animals to form associations between dangers and some stimuli. In this case, humans tend to associate snakes with danger than flowers to danger. This tendency of humans to associate snakes with danger has made humans, according to evolutionary perspective, to fear and avoid snakes. And so, became a trait for adaptation for humans’ survival.
144 = x^2
Square root of 144 is 12, and therefore the lengths of the side of the game board are 12 inches
Answer:
c. This statement is true because plants are able to convert sun energy into food energy and animals must get their energy from plants or other organisms that eat plants.
Explanation:
Green plants are autotrophs. They synthesize their food in the presence of sunlight, using carbon dioxide gas and water. Whereas animals are heterotrophs, they cannot make their food but use food prepared by green plants. Thus, plants are able to convert sun energy into food energy and animals must get their energy from plants or other organisms that eat plants. The statement is true.