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jarptica [38.1K]
3 years ago
14

What step occurs first in the embryonic development of most bones?

Biology
1 answer:
Viktor [21]3 years ago
5 0

A bony collar forms.

The bone collar is a cuff of periosteal bone that forms around the diaphysis of the hyaline cartilage model in developing long bones. The bone collar appears during endochondral bone development to support the growing bone and help it retain its shape.


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Explanation:

a. Since both the parents are carriers, they have one allele that is the gene for the normal trait and one gene that is for the sickle cell trait. So the genotypes of the parents are Hh

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(one again, I hope this helps ^^)

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D. They form an ionic compound.

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Explanation:

<h3>for example:- </h3>

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