1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
devlian [24]
3 years ago
9

You are maintaining a small population of fruit flies in the laboratory by transferring the flies to a new culture bottle after

each generation. After several generations, you notice that the viability of the flies has decreased greatly. Recognizing that small population size is likely to be linked to decreased viability, the best way to reverse this trend is toa. change the temperature at which you rear the flies.b. transfer only the largest flies.
c. reduce the number of flies that you transfer at each generation.
d. shock the flies with a brief treatment of heat or cold to make them more hardy.
e. cross your flies with flies from another lab.
Biology
1 answer:
ludmilkaskok [199]3 years ago
5 0

Answer:

e. cross your flies with flies from another lab.

Explanation:

The given small population of flies is exhibiting loss of genetic variations due to small population size leading to reduced viability. The populations with small size often exhibit loss of vigor due to reduced genetic variability. The loss of viability as caused by loss of genetic variations can be overcome by out-crossing. In out-crossing, the related individuals with no common ancestors for at least 5-6 generations are crossed.

Out-crossing increases the genetic variations and thereby, restores the lost viability of the population. Therefore, the population of flies should be allowed to mate with the flies from another lab to increase genetic variations and thereby, the viability of the progeny.

You might be interested in
Birds feathers are modified scales
Alja [10]

Answer:

<h3>The genes that caused scales to become feathers in the early ancestors of birds </h3>
6 0
3 years ago
Which of the following best describes cell communication processes that occur when a cell detects a signaling molecule?
aleksklad [387]
Uhhh I believe it’s D.

hope I’m right.
3 0
2 years ago
Describe the reproductive process of human being
Alina [70]
Human reproduction<span> takes place as internal fertilisation by sexual intercourse. During this </span>process<span>, the male inserts his penis, which needs to be erect, into the female's vagina, and then either partner initiates rhythmic pelvic thrusts until the male ejaculates semen, which contains sperm, into the vaginal canal.</span>
4 0
3 years ago
Ocean surface currents circulate in clockwise direction in the Southern Hemisphere.
ch4aika [34]
The ocean surface currents circulate counter clockwise direction in the southern hermisphere duebto the coroilis effect.
7 0
3 years ago
What physical feature is largely responsible for separating the ethnic groups of the Balkans?
Arturiano [62]
Long teeth. Or length of teeth
4 0
3 years ago
Read 2 more answers
Other questions:
  • Which type of skin cancer is the least deadli?
    12·1 answer
  • A proposed bill that would force producers of alcoholic beverages to place additional medical warning labels on their bottles wo
    9·1 answer
  • How does the structure of the skeletal muscle help it perform its function? Its spindle-shaped cells allow it to do smooth movem
    12·2 answers
  • Which of the following is not a central theme of biology?
    8·1 answer
  • What does the hydrosphere include? fish dust plants rivers
    11·1 answer
  • Need help with biology problem please
    11·1 answer
  • A puddle of water a small pond and a large lake all contains water that is 74 degrees Fahrenheit which one of the three water so
    7·1 answer
  • Which is an example of a polygenic trait.
    11·2 answers
  • Need help with this please!!!!
    14·1 answer
  • Explain the "making life" experiments (BE SPECIFIC).
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!