DNA
Nucleic Acids are the basis for the storage and transmission of hereditary information in all cells. Determines a cell's function and manufactures proteins & enzymes. Encodes instructions for making proteins and RNA. DNA stores the “operating instructions” for a cell.
Answer:
There is a 0% chance of getting the phenotype of brown spots and short tails.
Explanation:
Here is a Punnett square
BL Bl BL Bl
BL BBLL BBLl BBLL BBLL
Bl BBLl BBll BBLl BBll
bL BbLL BbLl BbLL BbLl
bl BbLl Bbll BbLl Bbll
Answer:
<h2>
Alice's daughter Alix =X X* </h2><h2>
George V= XY
</h2><h2>
Progeny are;</h2><h2>
XX, XY, X*X, X*Y
</h2><h2>
50 % males would be infected
</h2><h2>
50% male normal</h2><h2>
50% female normal,
</h2><h2>
50 female carrier.
</h2>
Explanation:
Hemophilia is an inherited disease and it follows an X-linked recessive pattern. The genes for hemophilia disease are located on the X chromosome. In males one mutated copy of the chromosome X is sufficient to cause the condition, because male contain only one gene. Female contain XX chromosome, so both the chromosome must have mutated for causing this disease.
According to study of Queen Victoria (1891-1901) of England, Alice's daughter Alix was X linked carrier and George V was normal male,
so if they got married, their children would be
parents genotype X X* XY
progeny
XX, XY, X*X, X*Y
50% males would be infected
50% male normal
50% female normal,
50 female carrier.
