Answer: During prophase, the complex of DNA and proteins contained in the nucleus, known as chromatin, condenses. The chromatin coils and becomes increasingly compact, resulting in the formation of visible chromosomes. Chromosomes are made of a single piece of DNA that is highly organized.
Explanation:
Answer:
Chromosome number in gametes- haploid (n)
Chromosome number in zygote- diploid (2n)
Explanation:
Sexually-reproducing organisms make use of gametes to reproduce. The gametes are produced via the process of meiosis, which is a cell division that results in daughter cells (gametes) that have their chromosomal number reduced by half. A diploid (2n) organism i.e. possess two set of chromosomes undergoes meiosis to produce haploid (n) gametes i.e. contains one set of chromosomes. The male parent produces haploid sperm while the female parent produces haploid egg.
During reproduction, these haploid gametes (sperm and egg) combine in a process called FERTILIZATION to produce a diploid ZYGOTE. The diploid zygote then divides and grows into the full organism. Hence, since a zygote is formed by the fusion of two haploid gametes (sperm and egg), it contains a diploid chromosome number i.e. sperm (n) + egg (n) = zygote (2n)
Answer:
The flowchart is not seen in your question. The labeling cannot be done without seeing the flowchart.
Here are the processes of bacterial transformation:
Explanation:
Bacterial transformation is defined as the change in the properties of bacteria which is caused by the introduction of foreign and naked DNA.
DNA is an hereditary material in organisms that contains their genetic information.
Here are the processes of bacterial transformation:
Step 1: Donor cell forms a Donor cell lyses
Step 2: Donor cell homologous binds to a receptor site on the recipient cell.
Step 3: One strand of donor cell DNA is degraded, and transformed DNA Pairs with homologous region on recipient cell.
Step 4: Finally, recombines with recipient cell chromosome
