Context clues: Context clues can simply be defined as the hints that we get about the meaning of a word by reading a sentence or sentences related to that word. We can simply infer the meaning of the word by reading the sentence.
Tone: The tone of a sentence helps us to identify what the word in the sentence might mean. For example, if a sentence has a happy tone, we might infer that the word is related to some kind of happy meaning.
Word choice: The word choice refers to the selection of words by the writer. The usage of words by the writer helps us determine what the writer might mean by a word.
The organism previously used 15N for replication so all the DNA molecules were of 15N15N type. Then the organism is shifted to a medium where only 14N is available for replication.
According to semi conservative mode of replication, a newly synthesised DNA molecule consists of one new strand and one parental strand. So after the first round of replication, All the 15N strands will synthesise new DNA strands using 14N resulting into intermediate 15N14N DNA molecules. Hence, only one band would be observed (15N14N) above the original 15N15N band since 15N14N has lighter isotope too so it will be lighter than 15N15N molecules and will lie above it.
After second round of replication, 15N strand from 15N14N would synthesise another 14N strand. 14N strand from 15N14N molecules will also synthesise another 14N strand. So now, 50% of the DNA molecules will be of 15N14N intermediate type and 50% of them will be of 14N14N type.Two bands will be observed above the original 15N15N band. One band of 15N14N molecules will be right above it and other band of 14N14N molecules will be even higher because it is the lightest band since it has only the lighter isotope of nitrogen.
Female gametes are called eggs. In human males, for example, the process that produces mature sperm cells is called spermatogenesis. ... In human females, the process that produces mature eggs is called oogenesis. Just one egg is produced from the four haploid cells that result from meiosis
