Answer:
The correct answer is - 3/16 or 18.75% portion will be resistant to both Bt and DDT.
Explanation:
It is given that bollworms that are susceptible to Bt are represented by either RR or Rr and resistance one are shown by rr genotype and bollworms that are resistant to DDT are represent TT or Tt genotype and susceptible to DDT have tt genotype.
Cross: RR tt with rr TT
Gametes: Rt and rT
F1 cross:
RT
rT RrTt ( susceptible Bt and resistant DDT)
F1 Cross with F1
Gametes: RT, Rt, rT and rt
cross:
RT Rt rT rt
RT RRTT RRTt RrTT RrTt
Rt RRTt RRtt RrTt RrTt
rT RrTT RrTt rrTt rrTt
rt RrTt Rrtt rrTt rrtt
The bold genotypes are the three out of 16 that are resistant to both DDT and Bt.
Answer:
ph is unit of measuring acid and base
if ph is less than 7 it is acid and ph is more than 7 it is base
Answer: motility, ion transport associated with secretion and absorption, and gastrointestinal blood flow.
Explanation:
The nervous system exerts a profound influence on all digestive processes, namely motility, ion transport associated with secretion and absorption, and gastrointestinal blood flow. The magnitude and complexity of the enteric nervous system is immense - it contains as many neurons as the spinal cord.
<span>there is less vegetation to help water soak int the ground</span>
Explanation:
The explanation for the question is in the"Hardy-Weinberg principle" pdf attached below.
