D JURASSIC PERIOD BECAUSE THEY CAME UP WHEN DINOSAURS CAME
Answer:
Written below.
Explanation:
5. During meiosis, a reproductive cell and its nucleus divide twice and produce four cells––two pairs of identical haploid cells.
6. Homologous chromosomes are two pieces of DNA within a diploid organism that carry the same genes, one from each parental source. In simpler terms, both of your parents provide a complete genome. Each parent provides the same 23 chromosomes, which encode the same genes.
Multicellular organisms can be much larger and more complex. This is because the cells of the organism have specialised into many different types of cells such as nerve cells, blood cells, muscle cells all performing different functions
They begin to form about 3.8 billion years ago
In mrna adenine pairs with uracil (which replaces thymine) and guanine and cytosine pair up soo the complementary mrna strand would be cuuaag
