Answer:
A gene is a stretch of DNA or RNA that determines a certain trait. Genes mutate and can take two or more alternative forms; an allele is one of these forms of a gene. For example, the gene for eye color has several variations (alleles) such as an allele for blue eye color or an allele for brown eyes.
Explanation:
RNA polymerase can't bind on the promoter region, so no transcription takes place, consequently, no protein translation.
Answer:
In secondary succession, a previously occupied area is re-colonized following a disturbance that kills much or all of its community. A classic example of secondary succession occurs in oak and hickory forests cleared by wildfire. Wildfires will burn most vegetation and kill animals unable to flee the area.
I think its false because gas exchange can happen in blood also
The nucleolus<span> makes ribosomal subunits from proteins and ribosomal RNA, also known as rRNA. </span>
