Answer:
Identical twins are also known as monozygotic twins. They result from the fertilization of a single egg that splits in two. Identical twins share all of their genes and are always of the same sex. In contrast, fraternal, or dizygotic, twins result from the fertilization of two separate eggs during the same pregnancy.
Explanation:
Hope that helps!
If you are going from a high gradient to a low gradient it’s passive transport. Think of a hill if you put a rock at the top of that hill it will go down no energy involved. Active transport is going up the hill you must use energy to push that rock up the hill because it’s from a low gradient to the top. Hope this helps
During S phase stage of interphase the cells copy their chromosomes.
<u>Explanation:</u>
The S phase of a phone cycle happens during interphase, before mitosis or meiosis, and is liable for the amalgamation or replication of DNA. The cell makes an indistinguishable duplicate of every one of its chromosomes. Chromosomes are found inside the core of the cell and comprise of long strands of DNA that contain the hereditary data of the cell.
G2 stage: This happens after the DNA had been copied in S stage. At that point, at a basic point during interphase (called the S stage), the phone copies its chromosomes and guarantees its frameworks are prepared for cell division. The point of this procedure is to deliver twofold the measure of DNA, giving the premise to the chromosome sets of the daughter cells.
Answer:
adaptations are compromises
Explanation:
The pleiotropic gene involved in sickle-cell anemia is an example of heterozygous advantage. This means that the heterozygous genotype is favourale over other two genotypes (recessive homozygous and dominant homozygous). Eventhough it has harmful effect (sickle cell disease carrier) heterozygous genotype enables resistance to infection (malaria) and that is why this genotype is still favourable by natural selection. This phenomenon is evidence of compromise between harmful ad benefit.
