In the outbreak of malaria, the frequency of the recessive allele for the HbS gene will increase. The correct option is A.
<h3>What is the HbS gene?</h3>
HbS is a beta-globin gene known as sickle hemoglobin.
It causes sickle cell disease in humans.
The disease is expressed by two HbS variants or one HbS variant or one another beta-globin gene.
Malaria is caused by the plasmodium parasite, which is present in the saliva of the mosquito.
Thus, the correct option is A, the frequency will increase.
Learn more about HbS gene
brainly.com/question/14950995
Answer:
The phenotypic ratio is the distribution pattern (expressed as a ratio) of the physical characteristics in the offspring obtained after a genetic cross.
<h2>HOPE IT'S HELPS YOU </h2>
The correct answer or option is cerebrum
The cerebrum, also called cortex is the largest part of the brain.
It is divided into four sections, called lobes and these are the frontal lobe,
the parietal lobe, occipital lobe and temporal lobe.
Front lobe helps in speech, reasoning, planning, movement ,
emotions and problem solving.
parietal lobe helps in orientation, and perception of stimuli and
movement.
Occipital lobe helps in visual processing.
Temporal lobe helps in memory, speech as well as perception and
recognition of auditory stimuli
Answer:
The correct answer is option E. "nucleotides can only be added to an available 3'-OH group on the transcript terminus".
Explanation:
RNA synthesis is catalyzed by an enzyme called RNA polymerase. RNA polymerase always catalyze the synthesis of new RNA from 5' to 3' because nucleotides can only be added to an available 3'-OH group on the transcript terminus. This has been confirmed in labeling experiments with γ-32P substrates which establish the presence of a triphosphate moiety in transcripts with either pppG or pppA.
