I think that having an extra chromosome 21 is tolerable to the point that someone with this condition can survive to maturity because it does not replicate.
There should only be a pair of chromosome 21. In the event that there are 3 chromosome 21, the person that has this extra chromosome has Down syndrome. Changes in the number and structure of this chromosome may result to delayed development, intellectual disability, but not immediate death.
Ansnswer:
False.
No Mendel principled talk about how different genes assemble unregulated with one another to develop reproductive cells
Explanation:
Gregor Mendel was a scientist and the founder of modern science genetics. He made so findings in 1865 and He proposed three laws and they are;
Law of independent assortment which states that two alleles from different genes separated independently to form gamete.
Law of segregation states that a pair of gene separated to for reproductive cells.
Law of dorminant inheritance states that in heterozygote, dorminant allele will masked the recessive allele.
Isotonic, Hypotonic, and Hypertonic Solutions. Water moves readily across cell membranes through special protein-lined channels, and if the total concentration of all dissolved solutes is not equal on both sides, there will be net movement of water molecules into or out of the cell.
<span>All the options (heat, pressure, deposition and chemical environment) are correct.<span>
Metamorphic rocks are formed when pre-existing rocks are subjected to heat, pressure and hot mineral rich fluids which cause physical, chemical and mineralogical changes to the rock. Metamorphic rocks are grouped by chemical, texture and mineralogy. The common metamorphic rocks include schist, marble, and gneiss.
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When coming to building something, some materials are more vulnerable to water and can wear away easier. Some can keep the water in, so depending on the material, the water quality can be better sustained.
