Answer:
The correct answer will be option- E
Explanation:
The founder effect is the effect observed on the gene pool when a new isolated population is founded by the individuals migrated from the larger population. After migration, they inbred among them which changes the genetic pool of the small population.
In the given question since the population of the small town remained isolated from the American population and inbred among them, therefore, changed the genetic pool of the population.
Thus, the founder effect is the correct answer.
Answer:
cerebrum
Explanation:
cerebrum controls reading, thinking, learning, speech and emotions
Answer:
Sonar
Sound waves used for measuring the distance of an object are called Sonar.
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:
The arrow is pointing to the <em>nucleus</em>
.
The function of this organelle that it <em>controls the activities of the cells</em>
.
Explanation:
Hope this helps, have a great day!
