Answer:
The trisomy 21 karyotype figure shows the chromosomal arrangement, with the prominent extra chromosome 21. Trisomy 21 is the cause of approximately 95% of observed Down syndrome, with 88% coming from nondisjunction in the maternal gamete and 8% coming from nondisjunction in the paternal gamete.
Explanation:
Explanation:
In a phylogeny tree, the tips of the tree branches signify the taxa that are being studied. The most recently evolved species are positioned right at the phylogeny tree tip.
Answer:
Active transport
Explanation:
Active transport requires energy from the cell. It occurs when substances move from areas of lower to higher concentration or when very large molecules are transported. Types of active transport include ion pumps, such as the sodium-potassium pump, and vesicle transport, which includes endocytosis and exocytosis.
<u><em>Hope this helps!</em></u>
I think the answer is a but I am not sure
A i think, i mean you get both
