Answer:
protons and neutrons
Explanation:
Protons and neutrons have a positive and neutral charge, respectively. They are in the nucleus, while the negative electrons orbit the nucleus.
The type of mutation that would cause the most dramatic change in the polypeptide or protein product of a certain gene is the base-pair deletion. A deletion is a mutation in which the part or the base is lost during the process of replication. Any number of nucleotides can be deleted from a single base to an entire piece of chromosome.
Answer: Option D.
Cyclins are proteins that regulate the cell cycle at molecular level.
Explanation:
Cell cycle refers to series of activities that take place in the cell leading to replication of DNA and division of cytoplasm to give two daughter cells. Cell cycle are regulated by a set of proteins called cyclins.
Cyclins are group of proteins the bind and activates cycling dependent kinases enzymes in order to control cell progression through the cell cycle.
Animal cells don't have mitochondria and have smaller vacuoles than plant cells <span />
Answer:B
Explanation:
The first stage of photosynthesis is the light reaction which occur in the thylakoid membrane of the chloroplast. Solar energy of light captured by chlorophylls, and is used to produce high-energy electrons of which in a series of reactions produces ATP and NADPH.
In the dark reaction of photosynthesis the ATP and NADPH are used to reduce CO2 to produce sugar
