<h2>Down Syndrome</h2>
Explanation:
Down syndrome is a genetic disorder caused when abnormal cell division results in an extra full or partial copy of chromosome 21
- Down syndrome is a genetic disorder caused when abnormal cell division results in an extra full or partial copy of chromosome 21
- Down syndrome is usually caused by an error in cell division called nondisjunction which results in an embryo with three copies of chromosome 21 instead of the usual two
- Prior to or at conception, a pair of 21st chromosomes in either the sperm or the egg fails to separates
- With development in embryo the extra chromosome is replicated in every cell of the body;this type of Down syndrome which accounts for 95% of cases is called trisomy 21
- Maternal age is the only factor that has been linked to an increased chance of having a baby with Down syndrome resulting from nondisjunction;here environmental agents such as drugs, chemicals, and radiation act as mutagens which induce mutation in the fetus
Answer: Las células son las unidades de construcción más básicas de la vida. Todos los seres vivos están compuestos por células.
Explanation:
Explanation:
<em><u>Option</u></em><em><u> </u></em><em><u>C</u></em> <em>is </em><em>correct</em>
<em>Hope</em><em> this</em><em> </em><em>helps</em><em> you</em>
<em>have</em><em> a</em><em> </em><em>nice</em><em> day</em>
1. 32 c
2. 32 f
3. 212 c
4. 212 f
5.100 f
Hope this helps
Cell is limited in size for many reasons. Cells wouldn't be respire effectively if it were too large, because the surface area to the volume ratio would be too small.
The other thing is that if the cell were too large, it would be difficult for it to move nutrients and waste products in and out of the cell. So, cells are limited in size.
