Answer:
In prokaryotes (organisms without a nuclear membrane), DNA undergoes replication and transcription and RNA undergoes translation in an undivided compartment. All three processes can occur simultaneously.
In eukaryotes (organisms with a nuclear membrane), DNA undergoes replication and transcription in the nucleus, and proteins are made in the cytoplasm. RNA must therefore travel across the nuclear membrane before it undergoes translation. This means that transcription and translation are physically separated. The primary transcript, heterogeneous nuclear RNA (hnRNA), undergoes extensive post-transcriptional processing to make a messenger RNA (mRNA)molecule that can pass through the nuclear membrane.
Explanation:
Mature human sperm and ova are
similar in that they both have the same number of chromosomes. The human sperm
and ova are the reproductive cell in male and female respectively. The sperm
cells are motile while the ova are not. A mature human sperm and ova both contain 23
pairs of chromosomes.
The intermediate color or rather condition, in this case "roan", is a result of two alleles being codominant. Codominance occurs when the phenotype (or the physical expression of the gene) of a heterozygote individual expresses both the alleles in a pair of genes. In the given situation, both parents are homozygotes.
Answer:
In cross-pollinating plants that either produce yellow or green pea seeds exclusively, Mendel found that the first offspring generation (f1) always has yellow seeds. ... that a trait may not show up in an individual but can still be passed on to the next generation.
Explanation:
Answer is B.
Overfishing would lead to a bottleneck effect, as large numbers of fish are removed from a fish population. Population size has a major effect on the amount of genetic diversity. The greater the population, the greater genetic diversity. Due to overfishing, the population would become smaller, which would reduce genetic diversity. So the answer is B.
