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
Alla [95]
3 years ago
15

You are studying a population of American robins, Turdus migratorius, in which approximately 2% of all individuals carry a reces

sive allele for leucistic (unusually white) coloration. The population suddenly expands when an influx of robins arrives during spring migration, and the frequency of the leucistic allele drops to only 1.5%. Next season the frequency is still 1.5%. Does it appear that evolution occurred in the robin population in your study area?
Biology
1 answer:
IrinaVladis [17]3 years ago
4 0

Yes, It seems that evolution has occurred in this area.

Explanation:

Evolution refers to a phenomena in which new traits or alleles that favor a better survival of organisms in a given environment, become fixed in the population.

Evolution is characterized by appearance of new characters and change in allele frequencies.

In the given situation we find that the frequency of the recessive allele in the population has changed over time and the percentage has become fixed.

So, we can say that evolution has occurred in the robin population

You might be interested in
HELPPPPPP ITS SCIENCE BTW pls help i will give brainliest
raketka [301]

Answer:

B.

Hope it helps. Thanks

8 0
2 years ago
Prokaryotes can take up genetic material from each other without reproducing or even being closely related in a phenomenon calle
velikii [3]

the correct answer is c

8 0
4 years ago
Read 2 more answers
Based on the concept of phylogeny, an organism that was ancestral to both the bacteria and eukaryota domains would exhibit which
Helen [10]
"It would have DNA." is the one among the following characteristics that would be exhibited based <span>on the concept of phylogeny, an organism that was ancestral to both the bacteria and eukaryota domains. The correct option among all the options that are given in the question is the third option or option "C". </span>
5 0
3 years ago
Read 2 more answers
A cross between an individual with orange eyes and green skin and an individual with black eyes and white skin is an example of
anastassius [24]

Answer:

a. dihybrid.

Explanation:

A cross between two individuals which involves two observed traits is known as dihybrid cross. Here in this example, the two traits are 'eye color and skin color" that is why it can be considered as dihybrid cross.

All the Mendelian laws of genetics such as "the law of dominance, the law of independent assortment and the law of segregation" are applicable on dihybrid crosses.

Similarly, crosses between two individuals which involve only one trait such as hair color will be considered as monohybrid cross while the crosses involving 3 traits will be considered as trihybrid cross.

7 0
3 years ago
Sort the labels into the correct bin according to the effect that gramicidin would have on each process.
EleoNora [17]
Remains the same: proton pumping rate, electron transport rate, rate of oxygen uptake
Decreases or goes to zero: Rate of ATP synthesis, size of the proton gradient
<span>(Gramicidin causes membranes to become very leaky to protons, so that a proton gradient cannot be maintained and ATP synthesis stops. However, the leakiness of the membrane has no effect on the ability of electron transport to pump protons. Thus, the rates of proton pumping, electron transport, and oxygen uptake remain unchanged.)</span>
4 0
4 years ago
Other questions:
  • Where is the dinosaur national monument located
    7·1 answer
  • In which direction are the periods organized on the periodic table?
    8·1 answer
  • What is a food web?
    9·2 answers
  • 1. Discuss gravitational force in our universe and how it words. 2. Why is it critical to our universe? 3. Name at least three i
    8·1 answer
  • After receiving a tick bite, jenny worries that she may have become infected with lyme disease. her doctor immediately orders a
    9·1 answer
  • Think about it: Since hard-shelled organisms evolved about 550 million years ago, billions of tons of limestone rock have been p
    14·1 answer
  • If you follow this rule for topographic maps, you can determine if a point is higher or lower than the contour line it is near:
    15·2 answers
  • How are humans changing the carbon cycle?
    9·2 answers
  • Crocodiles are adapted to live in their environment. Which adaptations allow a crocodile to hunt land animals effectively withou
    14·1 answer
  • What are the lymphoid nodules called that located in the walls of the small intestine?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!