Because it allows only certain substances to permeate. If it was totally permeable that would be good enough to having no barrier as it would let everything though. Totally impermeable means that nothing would get through.
<h2>Law of independent assortment </h2>
Explanation:
- There are 8 distinct phenotypes, each one has a 12,5% of appearance: Since M=solid leaves D=normal height P= smooth skin.
- Recessive gene characters can only be taken in homozygous recessive mmddpp.
1. MmDdPp: M=solid leaves D=normal height P= smooth skin.
2. MmDdpp M=solid leaves D=normal height pp= peach skin.
3. MmddPp M=solid leaves dd=dwarf height P= smooth skin.
4. Mmddpp M=solid leaves dd=dwarf height pp= peach skin.
5. mmDdPp mm=mottled leaves D=normal height P= smooth skin.
6. mmDdpp mm=mottled leaves D=normal height pp= peach skin.
7. mmddPp mm=mottled leaves dd=dwarf height P= smooth skin.
8. mmddpp mm=mottled leaves dd=dwarf height pp= peach skin.
Hence,The answer is all eight possible phenotypes from the cross MmDdPp x mmddpp are equally likely, resulting in a phenotypic ratio of 1:1:1:1:1:1:1:1
Answer:
1/1000 or 0.001
Explanation:
Serial dilution refers to the systematic dilution of the known concentration through successive suspension of initial volume to a fixed value of diluent.
In the given question, the serial dilution is performed in which the dilution factor will be
DF= volume of added solution / total volume of solution
For tube A
= 1/ 1+9
=1/10 or 10 folds.
For tube B
= 1/10 x 1/10
= 1/100 or 0.01
For Tube C
= 1/10 x 1/10 x 1/10
= 1/1000 or 0.001
Therefore, total dilution of tube C will be 0.001 or 1/1000.
If you're referring to an organism like a skunk or a squid, yes. It is useful because it can disorient a predator so the prey can get away safely.
