22. D, that means the soil uhhhh helps the roots to grow??? Also because sunlight causes photosynthesis- sorry i’m not good at this hope it helps
The right answer is c. anther; stigma.
Pollination is the fertilization necessary for sexual reproduction of flowering plants. It corresponds to the transport of the pollen grains produced by the male organs of the plant (anthers) towards the female organs (stigmas). The wind, some birds, some small rodents but mostly insects provide this service. The small population of pollinators is primarily insects and, essentially, wild or domestic bees.
Answer:
Option B, Transcription that originates at the core promoter and +1 site
Explanation:
In basal transcription process a special class of transcription factors which are nothing but the protein that binds to specific sites on DNA (which are also known as promoter sites) with an objective of activating transcription of genetic information from DNA to RNA , specifically messenger RNA. The transcription initiation requires association at promoter site(or regions of DNA that are found in the upstream of the coding region of a gene) along with a σ sub unit
Hence, option B is correct
Answer:
Northern
Explanation:
The northern hemisphere is not in the sunlight, therefore it is winter.
Answer:
e. 1/2; semiconservative
Explanation:
1/2 (proportion) of DNA molecules (each molecule is double stranded not single stranded) will contain any radioactivity after two rounds of replication.
This experiment also demonstrates that replication is semiconservative
.
DNA replication is semi-conservative because each helix that is created contains, one strand from the helix from which it was copied.