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
Pachacha [2.7K]
3 years ago
15

Flower color in snapdragons results from the amount of the pigment anthocyanin in the petals. Red flowers are produced by plants

that have full anthocyanin production, and ivory-colored flowers are produced by plants that lack the ability to produce anthocyanin. The allele An1 has full activity in anthocyanin production, and the allele An2 is a null allele. Dr. Ara B. Dopsis, a famous genetic researcher, crosses pure-breeding red snapdragons to pure-breeding ivory snapdragons and produces F1 progeny plants that have pink flowers. He proposes that this outcome is the result of incomplete dominance, and he crosses the F1 to test his hypothesis. What genotypes does Dr. Dopsis predict will be found in the F2
Biology
1 answer:
USPshnik [31]3 years ago
8 0

Answer:

The genotypes found in the F2 offspring will be An1An1, An1An2 and An2An2.

Explanation:

In the example given in the question, the color of the petals of snapdragon flowers are given with the An1 allele having full activity and the An2 allele being the null allele. For the F1 offspring, two snapdragon flowers are crossed, one with red petals which is An1An1 and one with ivory petals which is An2An2. All the genotypes for the F1 offspring will result in An1An2.

Then using this F1 offspring, the F2 offspring is found and the genotype of the F2 offspring will be An1An1 / An1An2 / An1An2 / An2An2.

So the genotypes found in the F2 offspring will be An1An1, An1An2 and An2An2. One red petal snapdragon, 1 ivory snapdragon and 2 pink snapdragons.

I hope this answer helps.

You might be interested in
Describe what happens to an ecosystem when a keystone species is removed.
enot [183]

Answer:

The ecosystem would be forced to radically change, allowing new and possibly invasive species to populate the habitat.

Explanation:

A keystone species is an organism that helps define an entire ecosystem. Without its keystone species, the ecosystem would be dramatically different or cease to exist altogether.

I HoPe ThIs HeLpS!!!!!

8 0
3 years ago
A biologist studying a desert ecosystem observes that the population of a lizard species increases following particularly hot, d
Alona [7]

Answer:

B.

Explanation:

Same but different because lizards are very similar to snakes. Snake are just more vicious.

6 0
3 years ago
Which of the following is not a piece of molecular evidence supporting the endosymbiotic theory?
Alchen [17]
A. the mitochondria and chloroplasts are much different in structure than bacteria
6 0
3 years ago
What’s is the common name of the fossil fuel we put in our cars?
iren2701 [21]

Answer:

petroleum

Explanation:

7 0
3 years ago
Read 2 more answers
What do you know about an organism's parents if it is homozygous for a
marishachu [46]

Answer: A

Explanation:

7 0
3 years ago
Other questions:
  • PLEASE HELP ASAP!!!
    6·1 answer
  • Most species of cyanobacteria are enclosed in a _____.
    12·1 answer
  • What do insulin and glucagon have in common
    6·2 answers
  • Name the organelle where protein synthesis takes place; found free in the cytoplasm or attached to Endoplasmic reticulum
    9·1 answer
  • In examining a cell using the electron microscope, you see a structure that is composed of two membranes, contains numerous pore
    9·1 answer
  • Why do all marine algae live near the ocean surface?
    9·1 answer
  • *PLEASE ANSWER!!, I DONT GET IT*
    7·1 answer
  • Why does climate change have such a large impact on coral reefs? 1. Excess carbon dioxide in the atmosphere dissolves in the oce
    12·1 answer
  • Sarah was watching the weather forecast on television. The high temperature for the day was to be 33°F and the relative humidity
    10·1 answer
  • Are humans considered creatures?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!