Answer:
A. Earth's tilt on its axis
Explanation:
Because of the earth's tilt, during part of the year the NE US is angled towards the sun, but the other part of the year it is angled away from the sun. This is what gives us our seasons.
Answer:
The correct answer is D. On the plasma membrane.
Explanation:
Prokaryotes do not have mitochondria to synthesize ATP but ATP synthesis takes place in prokaryotes on the plasma membrane as the plasma membrane contains the enzymes that are required for ATP synthesis.
The process of ATP synthesis is just like in the mitochondria. NADH helps in building the proton gradient in the outer portion of the membrane by the help of electron carriers embedded in the plasma membrane. Then these protons come back in the cytoplasm through ATP synthase enzyme complex.
This entry of protons helps in the generation of ATP from ADP and inorganic phosphate with the help of ATP synthase enzyme. Therefore the correct answer is D. On the plasma membrane.
Answer:
A very few pollen grain can pollinate the flower. Purity of the race is maintained. Self-pollination avoid wastage of pollen grains. Less chances of failure of pollination.
Explanation:
Answer:
restriction enzymes are enzymatic proteins which cleave DNA at specific sites. these proteins are contained inside the bacteria to cleave the foreign DNA particles from Bacteriophages. these enzymes can be isolated from the bacteria and can be used in vitro for DNA manipulation.
Explanation:
restriction enzymes cut DNA creating smaller segments.
Also name restriction endonucleases
examples:
HIND3, BAMH1, ECOR1, etc
