Answer:
a
Explanation:
Remember, a biotic factors are those that are living (having life in them), while the abiotic factors are not living organisms.
Oxygen is in the category of biotic and it interacts with the atmosphere (space) which is abiotic.
No generations or hybrid would form before meselson and stahl would have observed evidence of a band in the cscl gradient.
The conservative model predicts that, following a single replication, half of the newly formed DNA double helices will be made entirely of the original, or old, DNA, and the other half will be entirely new. Then, each double helix would be completely replicated during the second round of replication. After that, 25% of the double helices would be all new, and 25% would be entirely old. Thus, the fraction of entirely new DNA double helices would increase with each succeeding round of replication, but the total number of completely unique DNA double helices would remain constant. Therefore, no hybrid DNA molecule containing 14N and 15N is replicated in the conservative model.
To learn more about conservative model. Click, brainly.com/question/14025877
#SPJ4
<span>The answer is
transcription. It is mediated by RNA polymerase enzyme
that reads the DNA template and makes an RNA
strand that is antiparallel and composed of nucleotides complementary to the DNA strand. This process is the first step of
gene expression. </span>
Answer:
Yes the cell will re-aggregate
Explanation:
Cells from tissue B are isolated and dissociated, then treated with the antibodies raised against cell type A membrane proteins. Will cells from tissue By aggregate.
Aggregation permits a cell-cell contact present in a tissue, this enhances the function and behavior if the cells.
