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MissTica
3 years ago
11

What are the events that occur during fertilization and birth of the fetus?

Biology
1 answer:
solong [7]3 years ago
3 0

Explanation:

Stages of development: During the fetal stage, the brain develops and the body adds size and weight, until the fetus reaches full-term development. Throughout the fetal stage the brain continues to grow and develop, nearly doubling in size from weeks

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Mutations in_ cells cause mutations to be passed on to the next generation
marysya [2.9K]

Answer:

TRUE

Explanation:

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After Meiosis 2, how many chromosomes will I have in each cell if I start with 48 chromosomes in my original parent cell? Is the
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you would have 24 chromosomes  and it would be haploid

Explanation:

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If a person cuts his finger eventually the cut will heal and the skin will be whole again how does the gap created by the cut ge
Greeley [361]

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Cells on either side of the cut pull toward each other until they close the gap.

~Hope this helps!~

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In a healthy individual, the strongest respiratory stimulus for breathing is
VashaNatasha [74]
During normal breathing, the brain is stimulated to breath with increasing acidity as a result of CO2 concentration from basic metabolic processes. The brain is quite selfish and only really wants to maintain it's pH which should be at a range of 7.3-7.45, and will not tolerate any decrease. 

In patients who have a chronic respiratory disorder with things like COPD. The brain has become accustomed to excessive acidic content, and is now stimulated by the Hypoxic drive or by low oxygen content. 
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3 years ago
Put the following steps in the correct order from 1-9
storchak [24]

Answer:

transcription of mRNA from DNA

small ribosomal subunit binds to mRNA

initiation complex formed with addition of large ribosomal subunit

translocation

codon recognition (non-initiating site)  

peptide bond formation

ribosome reads a stop codon

polypeptide chain is released from the P site

ribosomal subunits dissociate

Explanation:

The above describes the process of translation in the ribosome. After transcription of DNA to mRNA, the mRNA is taken to the ribosome to undergo translation, here the mRNA binds to the small ribosomal subuits and to other initiation factors; binding at the mRNA binding site on the small ribosomal subunit then the Large ribosomal subunits joins in.

Translation begins (codon recognition; initiating site) at the initiation codon AUG on the mRNA with the tRNA bringing its amino acid (methionine in eukaryotes and formyl methionine in prokaryotes) forming complementary base pair between its anticodon and mRNA's AUG start codon. Then translocation occurs with the ribosome moving one codon over on the mRNA thus moving the start codon tRNA from the A site to the P site, then codon recognition occurs (non-initiating site again) which includes incoming tRNA with an anticodon that is complementary to the codon exposed in the A site binds to the mRNA.

Then peptide bond formation occurs between the amino acid carried by the tRNA in the p site and the A site. When the ribosome reads a stop codon, the process stops and the polypeptide chain produced is released and the ribosomal subunits dissociates.

6 0
3 years ago
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