Answer:
One possible explanation for why <u><em>maternal age</em></u> is a primary risk factor for autosomal trisomy is that oocytes remain in meiosis I until ovulation, which could take<em> place many years after birth, making them more susceptible to damage.</em>
Explanation:
Increasing age becomes a risk for abnormal children like children with autosomal trisomy because as the age of the female increases, the chances of abnormal division of chromosomes in the egg of the female also increases. After the age of 30, the chance of having a baby with autosomal trisomy increases exponentially. The risk primarily increase because of the abnormalities in meiosis in the women.
Fossils Dinosaurs
Explanation:
Fossils are the preserved remains of organisms that has once lived. They are made up preserved remain of their body parts or activities as the case may be.
Dinosaurs are a group of large sized carnivores and herbivores that lived during the mesozoic.
- Remains of their body parts have been found rock layers.
- The Sahara desert in some part of Niger in Africa has provided good fossils of dinosaurs for paleontological studies.
- The imprints of some the activities of these organisms have also been found.
- Fossils are very good sources to show the existence of ancient lives.
learn more:
Fossils brainly.com/question/9415077
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My guess would be the first one , Hope it’s the correct answer !
The answer is for your question is c
