The pathway would be over active, If a ligand were stuck in the G-protein-linked receptor.
<h3>What usually happens when a ligand binds to a receptor protein?</h3>
When the ligand attached to the internal receptor, a change occurs that shows at DNA-binding site on the protein.
The ligand-receptor complex moves into the nucleus where it binds itself to regions of the chromosomal DNA. It promotes the initiation of the process of transcription so we can conclude that if a ligand were stuck in the G-protein-linked receptor, the pathway would be over active.
Learn more about ligand here: brainly.com/question/1869211
Answer:
e
Explanation:
Forests and trees store carbon . When they are degraded or completely cleared, e.g. by fire – a process referred to as deforestation – this stored carbon has the potential to be released back into the atmosphere as carbon dioxide and contribute to climate change .
Question 1
Answer:
D- Different nucleotide combinations code for the same amino acid.
Explanation:
Some amino acid has more than one nucleotide combination coding for it.
Question 2
Answer:
B- Redundancy
Explanation:
Redundancy means that more than one codon is assigned for the coding of most amino acids.
Question 3
Answer:
0%
Explanation:
Since both parents are homozygous dominant and recessive respectively, no crossing can give the homozygous dominant as all offspring are heterozygous.
Question 4
Answer:
Homozygous.
Explanation:
The genotype 'dd' is homozygous since the two letters are both in the lower case.
Question 5
Answer:
25%
Question 6
Answer:
Dihybrid cross
Answer: The correct answer is -
D) giraffes having increasingly longer necks over time.
Natural selection is an evolutionary mechanism that was proposed by Darwin.
According to this mechanism, organisms that are better capable of adapting to their changing environmental conditions, survive and increase their number through reproduction whereas other are eliminated from the population.
Example - Long neck of Giraffe, which is much elongated, lofty stature, that was beautifully adapted for browsing on the higher tree branches. This was an adaptation with slow and gradual change in the gene frequency as the lower vegetation was eaten by other animals. Due to this, giraffes had to search for other source (that was higher tree branches).
This is considered as a peculiar example of natural selection.
