Due to collisions between particles in the spinning cloud, the solar nebula begins to flatten. The particles in the gas cloud first have all different speeds in different directions. As they start colliding with each other, their final velocity is the average of the two initial velocities before collision.
In mitosis, the first stage is prophase. The
nucleolus disappears and the two centrosomes begin to form the mitotic spindle.
The spindle xtends between two opposite poles f the cell. Next is the
metaphase. The centromeres of the chromatid pairs align at the center of the
miotic spindle. Then anaphase, the centromeres will split that separates the
chromatid pair. They are now called chromosomes. The last phase is the
telophase. The chromosomes will then form a thread-like chromatin and for ache
envelope, a nucleoli appears. <span>The type of
cell division that produces gametes with half the normal chromosome number is
the meiosis. Meiosis is the type of cell division used in sexual reproduction.
It will occur in the testes and ovaries.</span>
An example is a radio wave
Answer:
RNA is usually synthesized from DNA.
<span>The answer is a), all red, as no white alleles are present in the parents, [ and hence cannot be passed on to the offspring. Showing work- Let R represent the dominant (red) allele: RR(male) x RR(female) ----> All RR offspring.</span>
