Plants roots display positive gravitropism which means they grow in the direction of gravity
Answer:
Because the probability of hemophilia would be 1:4
Explanation:
Hemophilia is a disease that comes with a sex chromosome (pair 46).
It is a recessive allele associated with chromosome X, women have two X chromosomes they can carry it, but they don't have it because they have another dominand allele non-hemophilic.
If you draw a Punnet square with a non-hemophilic father and a carrying mother, you'll found you have 1:4 chances of having a baby boy with hemophilia.
Carrying mother = X(H)X(h)
Father = X(H) Y
Answer: C. 0.024
Explanation:
The pvalue 0.024 is < 5% which shows that the expected number of offspring were statistically different from expected.
Answer;
-inhibition of peptidoglycan synthesis
-inhibition of fimbriae synthesis
-interfering with translation at 70s ribosomes
Explanation;
-
Selective toxicity refers to the ability of the drug to targets sites that are relative specific to the microorganism responsible for infection. Sometimes these sites are unique to the microorganism or simply more essential to survival of the microorganism than to the host.
-Antibacterial action generally falls within one of four mechanisms, three of which involve the inhibition or regulation of enzymes involved in cell wall biosynthesis, nucleic acid metabolism and repair, or protein synthesis, respectively. The fourth mechanism involves the disruption of membrane structure.
Answer: option D
In generalized transduction, any DNA can be moved while in specialized transduction certain DNA from the phage site is moved.
Explanation:
Transduction is the process where foreign DNA is added to a cell by a virus or viral vector.
Transduction is divided into two, generalized and specialized.
Generalized transduction is a process where any DNA can be transferred by the virus in the cell while specialized transduction is a process where a fragment of the DNA near the phage site can be moved.
