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Svetllana [295]
2 years ago
11

Caffeine is an inhibitor of phosphodiesterase. Therefore, the cells of a person who has recently consumed coffee would have incr

eased levels of _____.
A) phosphorylated proteins
B) cAMP
C) adenylyl cyclase
D) activated G proteins
Biology
1 answer:
adell [148]2 years ago
7 0

Answer:

B) cAMP

Explanation:

Phosphodiesterase is an enzyme that breaks a phosphodiester bond, for example in molecules such as cAMP and cGMP. So, phosphodiestarases are  are regulators of signal transduction: regulate the duration of signaling pathway.

Caffeine is  central-nervous-system stimulant and the mechanisms of its action usually are: mobilization of intracellular calcium or inhibition of specific phosphodiesterases.

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konstantin123 [22]
Balance improves

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3 0
1 year ago
Imagine that you want to breed a species of rose that has a wonderful smell. You have many different types of roses, but none of
Natalija [7]

Answer: if i want to breed a rose and i don't have a certain kind of rose, i have to cross between them until i have a kind of rose that express the phenotype i was looking for. Once i've got it, i'll try to cross it with another rose and generate more species like that to cross with the rose that express the phenotype, this favors to generate a specie that have a pure phenotype.

Explanation: The answer is explain by the Mendel's laws.

Mendel's second law:

if you have two roses that are heterozygous and you cross them, their offspring have a 25% probability of generating a homozygous phenotype for a certain recessive characteristic (such as the rich smell of roses that is not a dominant character), 50% of generate heterozygotes with a dominant phenotype, and 25% generate other homozygotes with a dominant phenotype.

Once the offspring with the recessive homozygous character are obtained, it is possible to start making crosses between those of a recessive nature and there Mendel's first law applies

All the homozygous recessive individuals that are crossed will have a 100% homozygous recessive offspring.

Also, if you cross heterozygotes with another heterozygotes the offspring will be 100% heterozygotes

3 0
2 years ago
Mendel investigates stem length, or height in pea plants what if he had investigated human height instead why would his results
WINSTONCH [101]

Human height is one of the traits that belong to traits that cannot easily be placed in discrete phenotypic classes (there is not only tall and short people, there is continuous variation of height between them). Such traits are usually controlled by more than one gene (polygenic traits).

On the other hand, a Mendelian trait is controlled by a single locus.


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Why must nations sometimes work together to solve environmental problems
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Because some problems are not always small enough for one nation that can do it by themselves and need more helpo
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I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!



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8 0
2 years ago
Read 2 more answers
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