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xz_007 [3.2K]
3 years ago
9

If fertilization does not occur....what is triggered? a.menstrual cycle b.ovarian cycle

Biology
2 answers:
il63 [147K]3 years ago
6 0

Answer:

a. menstrual cycle

Explanation:

olga55 [171]3 years ago
3 0

Answer:

A. menstrual cycle

Explanation:

hope this helps!

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How do the bonding properties of carbon atoms result in the large variety of carbon based molecules in living things
Elden [556K]
Carbohydrates dissolve in water and lipids don't. Explain how the bonding properties of carbon atoms result in the large variety of carbon-based molecules in living things<span>. </span>Carbon atoms<span> are able to form 4 </span>types<span> of covalent bond which ends up as molecules</span><span>.</span>
7 0
3 years ago
Thymine in DNA occurs as the result of thymidylate synthase creating _______, which then undergoes _______ to _______, then to _
tensa zangetsu [6.8K]

Answer:

Thymine in DNA occurs as the result of thymidylate synthase creating deoxythymidine monophosphate (dTMP), which then undergoes phosphorylation to deoxythymidine diphosphate (dTDP), then to Deoxythymidine triphosphate (dTTP), and incorporated into DNA by the DNA polymerase (DNA pol). Thymine in tRNA arises post-transcriptionally, by S-adenosylmethionine-dependent methylation of a uridine 5'-monophosphate (UMP) residue in RNA.

Explanation:

Thymidylate synthase is an enzyme involved in <em>de novo</em> DNA synthesis. This enzyme (thymidylate synthase) catalyzes the transfer of the one-carbon group from 5,10-methylene-tetrahydrofolate (5,10-CH2-THF) to deoxyuridine monophosphate (dUMP) and subsequent methylation to produce deoxythymidine monophosphate (dTMP), which is then phosphorylated to deoxythymidine triphosphate (dTTP) by kinases and incorporated into DNA. On the other hand, specific tRNA methylases catalyze the methylation of transference RNA (tRNA) by using S-adenosylmethionine as a methyl donor. Since tRNA methylation is a post-transcriptional modification, this chemical reaction is considered an epitranscriptomic modification on the RNA molecule.

5 0
3 years ago
Radiolarians have a cell wall made of
murzikaleks [220]
<span>Radiolarians have a cell wall made of .....
According to </span>
 https://microbewiki.kenyon.edu/index.php/Radiolaria <span>
"</span>
Radiolaria are unicellular organisms. They have mineral skeletons (tests) that are composed of silica. The tests are formed through the absorption of silicon compounds. This skeleton is covered with cytoplasm, which is withdrawn if the organism is disturbed."
There cell wall is made of according to another website
...
<span> "Radiolaria....have cell walls made up of thick cellulose walls"
Hope this helps:)
@SamSamySamantha
</span>

4 0
3 years ago
Kevin was mugged at gunpoint in the park while walking his dog. He was so overcome with fear that he unconsciously pushed the tr
ehidna [41]

Answer:

kevin deserved it he stole my lunch money

Explanation:

5 0
3 years ago
_____ may live in soil in water or even the other animals as parasites
Zigmanuir [339]

Answer:

My guess is worm

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3 years ago
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