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
Andrews [41]
3 years ago
14

In a cross between two heterozygous individuals (eg. Rr X Rr), the expected phenotypic ratio of the offspring would be A) 1:2:2:

1. B) 1:2:1. C) 1:1. D) 3:1.

Biology
2 answers:
geniusboy [140]3 years ago
7 0
3:1.<span> The physical appearance of the </span>offspring<span> will be 3 </span>organisms<span> that look like the </span>parents<span>: 1 individual that differs in appearance.</span>
slavikrds [6]3 years ago
4 0

In a cross between two heterozygous individuals (eg. Rr X Rr), the expected phenotypic ratio of the offspring would be 3:1.

Reason:

When we cross Rr X Rr

we get

RR Rr Rr rr

Since R is dominant over r, the individuals with genotype RR and Rr will have the dominant phenotype. This implies that 3 offsprings will have dominant phenotype and 1 offspring (rr) will have recessive phenotype.

Thus the phenotypic ratio will be 3:1.

The image for the Punnett cross displaying this cross is attached for a better understanding of how the cross is made.

You might be interested in
A blood disorder caused by a lack of iron and red blood cells is called
vekshin1
Anemia is a blood disorder caused by a lack of iron and red blood cells.

Anemia impedes the production of protein hemoglobin in the body because of the absence or lack of the mineral iron in the blood. Iron is needed to produce the protein hemoglobin which in turn helps the red blood cells carry oxygen from the lungs and transport it all throughout the body.
5 0
3 years ago
What do you think is likely to happen if the sphincter at the base of the esophagus does not function properly?
dangina [55]

Answer:

When the lower esophageal sphincter is atrophied, a disease called achalasia occurs, in which there is no relaxation of the esophagus when the food is swallowed,  it is difficult for the food to go down to the stomach. Some symptoms are that the food, once swallowed, can not pass and gets stuck.

Regurgitation, chest pain and weight reduction may also occur.

3 0
3 years ago
Can someone help please?
sergij07 [2.7K]

uhm, though the graph doesn't match the problem, I remember doing this when I was in bio. If you are looking for the genome, it would be something along the lines of Gg, or GG (G=green dominant, g=yellow recessive)

I hope this is what you need!

4 0
3 years ago
Energy conversion within an animal cell would be severlely limited by removal of the cells
Aleksandr [31]
Mitochondria
...................................
8 0
3 years ago
Read 2 more answers
Which of these genotypes represents a carrier?<br> Аа<br> aa<br> XXY<br> AA
Setler79 [48]

Answer:

Aa

Explanation:

from what I can remember from 7th grade science

3 0
2 years ago
Other questions:
  • What is responsible for the yellow-orange coloration of leaves in the fall?
    11·1 answer
  • Which characteristic of a geographic region
    12·1 answer
  • Which can associate a suspect's gun with a crime?
    7·2 answers
  • Which is not a factor that affects the rate of diffusion
    5·1 answer
  • What drives deep ocean currents?
    6·1 answer
  • In comparison with primary​ storage, hard drives are​ ________.
    12·1 answer
  • If a brown-eyed mother and a blue-eyed father
    8·1 answer
  • At the bottom of the energy pyramid you will find ____ (autotrophs, herbivores, canivores, or top carnivores). An example of thi
    6·1 answer
  • Mutations that occur in DNA sequences during replication are___
    14·2 answers
  • What is the science of developing of grouping organisims
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!