Answer:
the lock and key model.
Explanation:
The reason why this model for enzymes is called as lock and key model is because like a specific key fits into a particular lock meant for only that key, in a similar way a substrate also fits in an enzyme active site which is specifically meant for that particular substrate only.
Enzymes are very specific for their substrates and only a substrate which has a particular shape corresponding to the active site of that enzyme can get inside the enzyme for catalysis.
This model is extremely useful for blocking enzymatic activities. In order to block the enzyme we can use a structural analogue of that enzyme which rather than getting converted into products inhibits the enzyme and restricts its activity.
For example: Cholesterol biosynthesis can be restricted easily by using statin drugs which are structural analogues of HMG CoA. Statins bind HMG CoA reductase and stop its structural analogue which is HMG CoA from binding this enzyme. By doing this HMG CoA is not converted into mevalonate and hence cholesterol biosynthesis is halted.
Answer:
the lock and key model is the answer
Explanation:
Enzyme has a pre-determined shape for the active site
Only substrate of specific shape can bind with active site
Substrate contact with enzyme will change the shape of the active site
Allows small change in space to accommodate substrate
Test cross is the cross between an organism with unknown dominant genotype and an organism with known recessive genotype.
Since dominant trait results from a dominant allele, the test cross can determine if an unknown genotype is heterozygous and homozygous dominant.
If A is dominant allele, and a is recessive allele, then AA is dominant homozygote, Aa is a heterozygote, and aa is recessive homozygote.
According to the Punnett square, if all of the offspring are heterozygote (Aa), then unknown genotype is dominant homozygous (AA). If half of the offspring are the heterozygote, and the other half are recessive homozygote, then the unknown genotype is heterozygote (Aa).
Answer:
Conduct a test cross with a purebred recessive plant.
Explanation:
Verified after test was graded within ody ssey ware system as question # 10.
The questions wording: You have a plant with yellow seeds, which express a dominant phenotype. How would you determine the plant's genotype?
B. They could help eradicate all infectious diseases is in the world
C. They could encourage people to eat healthier food
D. They can make fruit cups more productive than they were before
Answer: A) They could make it cheaper and easier to administer vaccines.
Explanation: Edible vaccines are much easier to administer than traditional vaccines that must be injected. Edible vaccines would be cheaper to manufacture than traditional vaccines because the vaccine would be produced by the plant as it grows.
2. desert
3. savanna
4. tropical rainforest
Answer:
In the case of seeing a ball and kicking it can be expressed in the actions of the nervous system as follows:
Part 1. Eyes see the ball and send signals with the help of sensory neurons that carry this message to the spinal cord.
PArt 2. The spinal cord processes the information and sends an "impulse" of kicking the ball that will transfer to motor neurons that transfer it to the brain and then muscles.
Sensory neurons --> spinal cord --> motor neurons --> brain---->leg muscles