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
Zinaida [17]
2 years ago
7

A farmer plants Bt cotton that is genetically modified to produce its own insecticide. Of the cotton bollworms feeding on these

Bt plants, only 5% survive unless they have at least one copy of the dominant resistance allele R that confers resistance to the Bt insecticide. When the farmer first plants Bt cotton, the frequency of the R allele in the cotton bollworm population is 0.01. What will the frequency of the resistance allele be after one generation of cotton bollworms fed on Bt cotton [answer]
Biology
1 answer:
-Dominant- [34]2 years ago
3 0

Answer:

the frequency of the resistant allele after one generation is 0.989

Explanation:

Given that :

A farmer plants Bt cotton that is genetically modified to produce its own insecticide.

Of the cotton bollworms feeding on these Bt plants, only 5% survive

i.e the survival rate s  = 5% =0.05

unless they have at least one copy of the dominant resistance allele R that confers resistance to the Bt insecticide

Frequency of R allele = 0.01

In order to determine what will the frequency of the resistance allele be after one generation of cotton bollworms fed on Bt cotton; we need to first determine the frequency of the recessive allele r.

According to Hardy-Weinberg Equilibrium ;

p+q = 1

Let p = R and q = r

R + r = 1

0.01 + r = 1

r = 1 - 0.01

r = 0.99

Now; the  frequency of the resistance allele after one generation can be calculated as :

q' = \dfrac{q(1-sq)}{1-(sq^2)}

where ;

q' = R

q = r

q' = \dfrac{0.99(1-(0.05 \times 0.99))}{1-(0.05 \times 0.99^2)}

q' = \dfrac{0.99(0.9505)}{1-(0.049005)}

q' = \dfrac{0.940995}{0.950995}

q' = 0.989

Thus; the frequency of the resistant allele after one generation is 0.989

You might be interested in
In what order does protein production occur in a cell 
Illusion [34]

Explanation:

Protein synthesis is the process in which cells make proteins. It occurs in two stages: transcription and translation. Transcription is the transfer of genetic instructions in DNA to mRNA in the nucleus. It includes three steps: initiation, elongation, and termination

4 0
3 years ago
During a routine clinic visit of a client who has myasthenia gravis, the nurse reinforces previous teaching about the disease an
torisob [31]
During routine  clinic  visit   the   client  should  state  the  following  information
1.  The  need  of   planing  activities  of  later  the  day
2.State  the  important  of  eating  meal  in a  semi-recumbent  position
3.Importance  of avoiding  people with respiratory  infection
4.Always  to   take  muscle relaxant   when  under  stress
6 0
3 years ago
Mention the name of four groups of important pathogenic E. coli? Can TBX medium be used to recover all types of nonpathogenic an
Law Incorporation [45]

The four groups of pathogenic E.coli are enteropathogenic, enterotoxigenic, verocytotoxigenic and enteroinvasive groups. These groups can best be isolated and recoved through luria broth.

<h3>What is Escherichia coli?</h3>

The pathogenic E. coli or Escherichia coli serotypes are grouped on the basis of their mechanism of causing symptoms in humans. The six groups of pathogenic E.coli are enteropathogenic, enterotoxigenic, verocytotoxigenic, enteroinvasive, enteroaggregative and diffusely adherent E. coli.

Luria broth (LB) is one of the most commonly used growth medium for E. coli. It promotes fast growth of the organism and also provides good plasmid yields, making it an excellent choice for most laboratory applications, especially the small-scale plasmid preps.

Learn more about E.coli here:

brainly.com/question/13553402

#SPJ1

5 0
1 year ago
Which of the following can cause excess growth of algae in water
Masja [62]

Answer:

Nutrient pollution is the process where too many nutrients, mainly nitrogen and phosphorus, are added to bodies of water and can act like fertilizer, causing excessive growth of algae. Nutrients can run off of land in urban areas where lawn and garden fertilizers are used

Explanation:

4 0
2 years ago
Good day/evening, <br>Can someone please help me to write a 1.5 page speech on koala bears? ​
ch4aika [34]

Fun Facts

Wild Koala Day Exists

Koalas:

have fingerprints

don't have to drink (much) water

smell like eucalyptus

Are picky eaters

Have to Eat a LOT

have some extra junk in the trunk

Are loners

hug trees to keep cool

exhibit same gender mating behavior

90 percent of female koalas have chlamydia

females' stomach pouches, where their babies live for a few months after they're  born

onetreeplanted

animalsmom

mentalfloss

6 0
2 years ago
Other questions:
  • What would be the copied strand of DNA for the following base DNA strand: CGGACTAGTTAC
    11·1 answer
  • Land biomes are separate into major groups
    11·1 answer
  • Compare the recipes of nutrient agar and macconkey agar. if an organism can grow on both media on which would you expect it to g
    14·1 answer
  • The element oxygen, represented by the symbol O, is classified as
    6·1 answer
  • Hurricanes lose energy as they make landfall."
    12·1 answer
  • Summarize given the large number of proteins is in the body
    5·1 answer
  • Pollen is produced in structure H through the process of
    9·1 answer
  • 1 424 Quiz
    13·1 answer
  • What does a greenhouse represent?​
    8·2 answers
  • __________ are anaerobic bacteria use carbon dioxide to release energy and produce methane
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!