Which event has to proceed all others during endochondral ossification?

Biology

1 answer:

algol [13]3 years ago

7 0

Answer:

Hyaline cartilage model formation is the event that should proceed all others during endochondral ossification.

Explanation:

The Greek root word for cartilage is ‘chondro’. Endochondral ossification is the systematic formation or replacement by bones to develop the growing skeleton from a growing cartilage.
Mesenchymal cells are converted to chondroblasts to chondrocytes and then to a hyaline cartilage model. This leads to the development of long bones of both the axial (ribs) and the appendicular skeleton (limb bones).
The sites of endochondral ossification are the physis, epiphysis, and cuboidal bones.
The five main steps involved in endochondral ossification are –

Bone collar formation
Cavitation
Periosteal bud invasion
Diaphysis elongation
Epiphiseal ossification

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Answer:

a. The mtDNA of Anna Anderson bore no resemblance to that of Tsarina Alexandra

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Explanation:

Mitochondria contain their own DNA known as mtDNA, a strand which is inherited maternally. mtDNA can be used to find maternal ancestry and cannot be passed down by a paternal parent.

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