A soil deficient in humus would have very few decomposers and be unable to hold much moisture.
So, the answer would be "have unusually low levels of biological activity."
Answer:
Mother - bb XAXa
Father - Bb XAY
Son - Bb XaY
Daughter - bb XAXa
Explanation:
Given –
Mother has blue-eye and normal vision
Son has brown eye and is color blind
Let the allele for Blue eye be represented by “b” and the allele for brown eye be represented by “B”
Given brown (B) is dominant over blue (b), thus both BB and Bb represents brown color eyes
Color blindness is associated with X gene
Thus Xa represents X –linked recessive colorblindness
And XA represents normal vision
Genotype of blue-eye and normal vision mother is bb XAXa . Mother is the carrier of recessive allele Xa for color blindness
Since son is color blind , his genotype would be Bb XaY
So fathers genotype would be
Bb XAY
Daughters genotype bb XAXa
The mutation resulting in sickle cell disease changes one base pair of DNA so that a codon now codes for a different amino acid, making it an example of a missense mutation. Missense mutation is the mutation characterized with <span>changes in one base pair so that the whole amino acid is changed.</span>
Answer: "Decreasing the salt concentration of the solution lowers DNA's melting point (Tm)" is not a true statement
Explanation:
Increasing salt concentration would lower the DNA's melting point (Tm), not otherwise.
For instance:
- In 8M urea (8M means 8 Moles per dm3), Tm is decreased by nearly 20°C.
- 95% formamide at room temperature would completely denature the double stranded DNA.
Thus, higher concentration of salts like urea or formamide lowers Tm, not otherwise
