Biological cell membranes are selectively permeable, which means that the ease and rate of small molecules passing through membranes vary widely. The plasma membrane regulates exchange of nutrients, oxygen, inorganic ions, waste products, and water. The cellular membrane’s molecular organization controls permeability.
I think rocks and menarals are the ones I think that what I know
Bacteria only:
The separation of chromosome initiates at the origin of replication of DNA.
Eukaryotes only:
Prior to separation, the duplicated chromosomes condense.
Nuclear envelope fragments allowing the separation of the chromosome.
Two copies of the duplicated chromosome are combined with their centromeres prior to separation.
Both bacteria and eukaryotes:
The replication of chromosomes takes place before cell division.
Replicated chromosomes separate by attaching to some other structural characteristic of the cell.
Answer:
carbon, hydrogen, and oxygen (second option listed)
Answer:
a. 50%
Explanation:
<em>BRCA1 genes is a tumor supressor gene whose harmful mutation can cause hereditary breast ovarian cancer syndrome in both males and females. The BRCA actually stands for breast cancer.</em>
<em>Mutation in BRCA1 gene is heritable and every progeny of a carrier parent irrespective of the sex has a 50% chance of inheriting the trait from such parent, be it from the mother or the father.</em>
Hence, the correct option is a.
