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ludmilkaskok [199]
3 years ago
6

Dinosaurs emerged during what time period?

Biology
2 answers:
yawa3891 [41]3 years ago
7 0
245 million years ago ( i have the same question lol)
agasfer [191]3 years ago
5 0
Between 230 and 65 million years ago( Mesozoic Era)
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3 years ago
Imagine a scenario where Barr bodies are not due to random inactivation, but rather, the silencing is due to paternal imprinting
artcher [175]

Answer:

<h2>If Barr bodies are not due to random inactivation, but rather, the silencing is due to paternal imprinting  then the frequency of men and women differs. </h2>

Explanation:

Red-green color  blindness: color blindness is an X-linked recessive disorder. The male having this disease will transmit his X chromosome (with the mutation) to his daughter, who will then be a carrier of the disease.  

If Barr bodies are not due to random inactivation, but rather, the silencing is due to paternal imprinting  then the frequency of men and women differs.

Male inherit its X chromosome only from mother and no X chromosome from father, having one Y chromosome but female receive one X chromosome from father and one from mother, having no Y chromosome, So if the paternal allele is silenced then the males are no affected.

5 0
3 years ago
Binding of ________________ to receptors (ligand-gated) on the sarcolemma at the neuromuscular junction is vital for depolarizat
kifflom [539]

Answer:

Binding of   <u>ACh (acetylcholine)  </u>  to receptors (ligand-gated) on the sarcolemma at the neuromuscular junction is vital for depolarization of the muscle fiber.

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It allows acetylcholine to be released into this synapse when an action potential hits a neuromuscular junction. Acetylcholine attaches to the nicotinic receptors localized on the post-synaptic membrane of the muscle fibre's motor end plate, a specialized region.

Hence , the answer is  <u>ACh (acetylcholine) .</u>

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3 years ago
The ancient Egyptians made black eye make-up with which element
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