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
Dovator [93]
3 years ago
15

a geneticist notes that crossing a round radish with a long radish produces oval radish. when oval radishes were crossed with ov

al radishes the F2 generation had these phenotypes 100 long 200 oval 100 round radishes. Use symbols to explain the results obtained for the F1 and F2 generations. please help!!!!
Biology
1 answer:
stepladder [879]3 years ago
4 0

If the shape of radish is under the control of one gene, for example A than we can say:

AA is dominant homozygous genotype-round radish phenotype,

aa is recessive homozygous genotype-long radish phenotype

If we cross round and long radish:

P: AA  x  aa

F1: Aa  Aa  Aa  Aa  

Aa is heterozygous genotype-oval phenotype

If we than cross the F1:

Aa  x  Aa

F2: AA  Aa  Aa  aa

This means that the ratio between the phenotypes woul be  1:2:1 (round:oval:long).


You might be interested in
What is an organism's habitat? what is its niche? how do these differ?
lianna [129]
The habitat is the kind of natural environment in which a particular organism species lives and it's ability to reproduce determines its niche.

(Prime Example):
Elephants shape their environment in many ways. They can change a forest to a grassy field or dig a hole that might become a pond.
8 0
3 years ago
What does DNA contain
Minchanka [31]
B.<span>the coded blueprint for life</span>
5 0
3 years ago
What did Darwin conclude about the finches on the Galapagos Islands that later supported his theory of evolution? Check all that
Ahat [919]

Answer:

The finches on Galapagos Islands had different beak

The beaks of the finches changed over time

The Galapagos finches had a common ancestor

Explanation: Darwin's Finches are a good example of natural selection and adaptive radiation of evolution. The different finches in Galapagos Island have emerged from a common  black, seed eating, short beak finches. This is called adaptive radiation, where different species arose from a single ancestor.

Due to changes in the natural environment, food resources, some finches have a long beak. This long beaks help them to eat insects. As a result, the competition will be less and nature selects them to survive in the new environment. This is a natural selection of evolution.

3 0
3 years ago
Read 2 more answers
Which level of organization completes a series of task?
tia_tia [17]
Option C would be correct. The organ system can plays many parts at one time. Also, it is the only system listed.

Hope this helps!
7 0
3 years ago
Read 2 more answers
Why is it beneficial for female peacocks to choose to mate with a male peacock with a full colorful trains?
vesna_86 [32]

Answer:

Peahens often choose males for the quality of their trains -- the quantity, size, and distribution of the colorful eyespots. Experiments show that offspring of males with more eyespots are bigger at birth and better at surviving in the wild than offspring of birds with fewer eyespots.

8 0
3 years ago
Other questions:
  • The layers of Earth's atmosphere are separated by which of the following?
    8·1 answer
  • What effect does an insertion or deletion have on the protein that is being manufactured?
    15·2 answers
  • If you had to slide a heavy bot across a floor, how would friction affect the amount of work you had to do on the box in order t
    11·1 answer
  • 8. Albinism is a harmful mutation where animals are completely white. This mutation is harmful because individuals are more easi
    15·1 answer
  • What's the relationship between cilia and flagella
    12·1 answer
  • 16. Which choice best describes methane (CH4)2
    9·2 answers
  • The Law of Independent Assortment describes why there is so much
    5·1 answer
  • What is an example of how the use of plastic is negatively affecting the environment? Help!
    15·1 answer
  • Which is a density dependent factor?
    15·1 answer
  • Which organisms are eukaryotes?<br> animals<br> plants<br> archaea<br> fungi
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!