Addition or deletion of nucleotides in any number besides 3 results in a "frame-shift mutation."
This is because every 3 nucleotides of DNA/mRNA exons codes for a single amino acid in the synthesis of a protein. This triplet codon theory means that if 3 nucleotides are added or deleted then an amino acid will be added or lost, but subsequent codons and amino acids will still be read correctly.
However, if any number of nucleotides other than 3 are added or removed, then the codons following the mutation will be out of "sync," in terms of the reading order.
Hence it is called a frame-shift mutation because it shift the reading frame when translating nucleic acids into proteins. Frame shifts will lead to the wrong amino acids being adding in the wrong order for the rest of the code after the mutation.
1. Answer;
It facilitates the movement of the fetus towards the pelvic girdle thus the child is born headfirst.
Explanation:
- During labor the pelvic floor facilitates movement of the fetus towards the pelvic girdle by resisting the descent of the presenting part. This makes the fetus to rotate forwards and therefore results in majority of the fetus being born headfirst.
2. Answer;
Purple pushing lead to development of pelvic floor problems.
Explanation
;
- Purple pushing involves the midwife instructing a woman to hold her breath for ten seconds while forcefully pushing down during a contraction.
- in the second stage instead of waiting for the mother to feel the instant urge of pushing which lead to development of pelvic floor problems.
3. Answer;
Exercise can help to strengthen the abdominal muscles and reduce the appearance of diastasis recti.
Explanation;
- By contracting transversal abs muscles they strengthen and pull the muscles inwards.
- The diastasis recti reduce with time due since the rectus muscles come close to each other enabling a human being to live a normal life because flexion, bending and stability becomes easy.
4. <u>Answer</u>
- Pelvic floor muscles
- Stomach muscles
- Abdominal muscles
- Perineal muscles
- Uterine muscles
<u>Explanation</u>
- Abdominal muscles are stretched to their limit by term. They greatly decrease the ability to perform strong contraction.
- Pelvic floor is vulnerable to muscular and neurological injury during labor and delivery.
- Perineal muscle tightening strengthens the pubococcygeus muscle and increases its tone.
5. Answer and explanation;
- Sports that can lead to falling down e.g. skating
- Sports that may involve altitude change
- Exercises that involve lying flat on your back
- Exercises that involve holding o breath
- Motionless standing
6. Answer
Yes
Explanation
;
- Exercise maintains physical fitness, health and wellness aiding growth to the unborn since the mother gains enough strength and energy and there is proper blood flow.
- Many pregnant women tend to gain weight which may lead to health difficulties for example struggling to breath. The pregnant lady is able to cope with labor and she is able to get back in shape after the baby is born.
7. <u>Answer</u>;
One is supposed to get up slowly and gradually to avoid dizziness.
<u>Explanation;</u>
- Dizziness happens after a tiresome activity done continuously for a period of time thus one should get up slowly and gradually to avoid other injuries like falling endangering the life of the unborn child.
Answer:
Hey mate......
Explanation:
This is ur answer.....
1A) There are 2 ways:-
<em><u>•</u></em><em><u> </u></em><em><u>Anaerobic Respiration.</u></em>
<em>The anaerobic respiration process takes place in the absence of oxygen. </em>
<em><u>•</u></em><em><u> </u></em><em><u>Aerobic Respiration</u>. </em>
<em>In aerobic respiration, breakdown of pyruvate takes place in the presence of oxygen to give rise to 3 molecules of carbon dioxide and water.</em>
2A) <em>Oxygen is transported from lungs to body cells in the form of oxyhemoglobin . the main 2 gases exchanged are 02 & C02 . 02 is absorbed by blood capillaries from lungs alveoli by diffusion while C02 is absorbed by blood alveoli from blood capillaries by diffusion.</em>
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Water levels would rise or fall, washing away existing beaches and threatening habitats of coastal animals or creating additional beach and lowering water levels, threatening the habitats of oceanic animals. Another is that water temperature may increase or decrease, harming aquatic life.
