Answer:
Number of babies with dominant hemoglobin genotype will be 
Explanation:
Given -
% of babies have SCD which means they have recessive version of hemoglobin
Let the recessive version of hemoglobin be represented by "h" and normal version of hemoglobin be represented by "H"
Babies having SCD will have genotype "hh" i.e homozygous recessive.
As per Hardy Weinberg's equation -
Thus, frequency of allele for recessive version of hemoglobin (h) is
Frequency of allele for normal version of hemoglobin (H) is
Thus, Frequency of population with normal version of hemoglobin i.e HH is equal to
hence, number of babies with dominant hemoglobin genotype will be
The UV is needed by the skin to make previtamin D3. Previtamin D3 or cholecalciferol made from the skin will be changed in the liver into 25- hydroxyvitamin D3 and then sent to the kidney to be changed into 1,25- dihydroxyvitamin D3. The last change in the kidney will active the vitamin D. Vitamin D has a role in the calcium absorption which was will strengthen the bone tissue.
Answer:
E2F transcription factors
Explanation:
The E2F transcription factors (TFs) encode intracellular factors associated with the control of the cell cycle. E2F are TFs that bind to promoter consensus sequences in order to activate transcription. These TFs control the expression of target genes involved in cell proliferation including, among others, genes for DNA replication and mitotic activation. Moreover, the E2F proteins also may act as a link between cell fate and the cell cycle. The retinoblastoma (Rb) is a protein that modulates the activity of the E2F family of TFs, and it has been shown that the Rb/E2F pathway is a key molecular mechanism associated with cell proliferation.
