Answer:
Mass extinction occur when the environment is not favourable.
Explanation:
Mass extinctions occur on the earth when there is sudden change in the environmental conditions for an organisms that is not good for the survival of that particular organisms so they extinct from the earth surface. The example of mass extinctions are dinosaurs. These dinosaurs were extinct due to change in their environment that decreases the availability of food for them so due to no available food, the dinosaur extinct from the earth.
Answer:
The flow chart for the cortisol steroid hormone is as follows:
1. Cortisol passes through the plasma membrane into the cytoplasm.
2. Cortisol receptor complex form in the cytoplasm.
3. Cortisol receptor complex enter the nucleus where it binds to gene.
4. Cortisol receptor complex acts as transcription factor.
5. The tranacribed mRNA is translated into specific protein.
Explanation:
Cortisol is small which is hydrophobic steroid hormone which has the ability to move through the plasma membrane of the cells. In the target cells the cortisol binds with the intracellular receptor protein of the cytoplasm which further forms a hormone receptor complex. The hormone receptor complex further moves into the nucleus ad hence acts as a transcription factor which gets bind to the specific gene and thus, activates the transcription into mRNA. The mRNA which is generated subsequently translated into some specific proteins. Proteins which has been produced with response to the cortisol signal function to the stress response.
Essentially ingesting too much salt can cause the salt to absorb the water in your body and this can make you dehydrated and lose water you need.
Answer:
3 UCA 5
Explanation:
The 5' end of a strand pairs up with the 3' of its complimentary strand. So with this fact, we can rule out option C.
Now when you pair the DNA template with the mRNA template, remember that RNA contains uracil and not thymine. So the base pairings would be:
T = A
A = U
U = A
G = C
C = G
Based on this, the pairing would be like this:
5' A G T 3'
3' U C A 5'
Answer:
This question is incomplete
Explanation:
There is no way to predict what the phenotypic ratio will be if we are not given the genotypes/phenotypes of the previous generation. However the concepts of genetic crossings can be explained.
In genetics, there is often genes controlling a certain characteristic in an organism, and when this organism mates, it passes on its genetic information to its offspring. This information can be mapped and we can predict what the future generation will look like given the genotypes and phenotypes of the generation before.
