These nucleotides have three parts: 1) a five carbon ribose sugar, 2) a phosphate molecule and 3) one of four nitrogenous bases: adenine, guanine, cytosine or uracil.
Answer:
A. Aerobic respiration
Explanation:
The cell body of neurons have mitochondria which in turn serve as the site for ATP production. Nerve cells derive their energy by complete oxidation of glucose by the process of aerobic respiration. The enzymes required for aerobic respiration of glucose are present in mitochondria. The ATP molecules produced in cell bodies are delivered to the other parts of neurons to serve as source of energy during conduction of nerve impulse.
Answer:
P generation: 1 purple flower (AA) : 1 white flower (aa)
F1 generation: 4 purple flowers (Aa) : 0 white flowers
F2 generation: 3 purple flowers (AA, Aa) : 1 white flower
Explanation:
Assuming the parents are AA and aa, the allele for white flowers is recessive, so there needs to be two of them for the trait to be expressed. Thus, the capital A purple allele that the other parent contributes will mask that white allele and all the flowers will appear purple. However, all of the offspring are Aa now, so when they are crossed, there's a 25% chance that they'll both contribute the lowercase a allele that codes for white flowers. Remember that if both of them give the lowercase a allele then the offspring will be aa and appear white.
The process of photosynthesis starts when the sunlight strikes the photosystem I pigments which excites these electrons. This energy is passed from molecule to molecule until it reaches the chloroplast molecule which is called P700. This molecule is so named since it only absorbs the light in the red region of the spectrum that has the wavelength of 700 nanometers. The photosynthesis process starts at this point where the chlorophyll pigment absorbs the sunlight and begins the process of converting this light to energy.
Hence the option that states that pigment molecules absorbs the light energy begins the process of photosynthesis.
A Sexual reproduction in protozoa can happen via conjugation, with the
incorporation of genetic material from one cell into another, or through
gametes that fertilize others and form zygotes. In plasmodium, sexual
reproduction happens in the mosquito, the definitive host, where the
zygote undergoes mitosis (sporogony), creating many sporozoites.
