answer.
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
myrzilka
4 months ago
9

Two fruit flies that are heterozygous for body color and eye color are crossed. Brown body color is dominant to black body color

. Red eye color is dominant to brown eye color. Determine the genotypes of offspring 1-8.

Biology
2 answers:
s2008m [2.3K]4 months ago
7 0

Answer:

1) BBEE

2) BbEe

3) BBee

4) BbEE

5) bbEE

6) bbEe

7) Bbee

8) bbee

Explanation:

on edg

vlada-n [2.5K]4 months ago
4 0

Hello!


Let's define the following gene symbols:

Brown Body Color (Dominant): B

Black Body Color (Recessive): b

Red Eye Color (Dominant): R

Brown Eye Color (Recessive): r


To forecast all phenotypic outcomes of this cross, constructing a Punnett Square is helpful as it simplifies the process of analyzing dihybrid crosses involving two distinct traits.

Essentially, you combine each possible allele pair from one parent (BR, Br, br, bR) with each pair from the other parent.


See the attached image for better understanding.


The resulting phenotypic ratio from this cross is:

9 : 3 : 3 : 1

9 showing dominance for both traits

3 showing dominant eye color and recessive body color

3 showing dominant body color and recessive eye color

1 showing recessiveness for both traits


Genotypes and their Corresponding Phenotypes:

BBRR - Brown Body, Red Eyes

BBrR - Brown Body, Red Eyes

BBRr - Brown Body, Red Eyes

bBRR - Brown Body, Red Eyes

BbRR - Brown Body, Red Eyes

BBrr - Brown Body, Brown Eyes

bBrR - Brown Body, Red Eyes

bBRr - Brown Body, Red Eyes

BbrR - Brown Body, Red Eyes

BbRr - Brown Body, Red Eyes

bBrr - Brown Body, Brown Eyes

Bbrr - Brown Body, Brown Eyes

bbRR - Black Body, Red Eyes

bbrR - Black Body, Red Eyes

bbRr - Black Body, Red Eyes

bbrr - Black Body, Brown Eyes


You might be interested in
In fruit flies, red eyes (pr+_) are dominant to purple eyes (prpr) and normal wings (vg+_) are dominant to vestigial wings (vgvg
11111nata11111 [2571]

Answer:

90%

Explanation:

Among the two genes, the one responsible for red eyes and vestigial wings will manifest in 90%

6 0
2 months ago
true or false: All substances can pass freely between the intracellular and extracellular fluids through a phospholipid bilayer.
garik1379 [2080]

Answer:

False

Explanation:

If this were indeed accurate, it would threaten the internal balance of our cells; akin to how not all keys fit in locks, not every molecule possesses the "key" needed to transport across the phospholipid bilayer into and out of the intracellular and extracellular fluids. Typically, small hydrophobic ("water-repelling") molecules can traverse this bilayer.

6 0
3 months ago
Read 2 more answers
Seth will attend college in the fall and live in the dormitory, so he is required to obtain a blank against bacterial meningitis
11111nata11111 [2571]

Response:

vaccine

bacteria

pathogens

cells

toxins

antibiotics

Clarification:

Bacterial meningitis is a severe infection leading to the Inflammation of the membranes surrounding the brain and spinal cord.

This infection is typically viral but can also be caused by fungi and bacteria. A vaccine is necessary to combat bacterial meningitis. Common signs include fever, neck stiffness, and headaches. It spreads through bacteria found in the throat of an infected individual and can be transmitted via coughing, sneezing, or kissing. The bacteria serve as pathogens that emit a toxin , which damages cells and components of the nervous system.

This condition is treated with intravenous antibiotics and corticosteroids in some cases.

Therefore, the correct sequential responses for the blanks are vaccine, bacteria, pathogens, cells, toxins, and antibiotics.

4 0
3 months ago
The model of exponential population growth predicts that the per capita population growth rate, r Select one:_______.
Tresset [2298]

Exponential Population Growth

Explanation:

The exponential population growth model forecasts that the per capita growth rate, r:

d. remains unchanged as the population enlarges.

A population is said to experience exponential growth when there are no constraints on its increase. All individuals have plentiful resources at their disposal, and the population showcases its inherent rate of growth. This is often termed geometric growth, where the rate of increase is reflected as a constant fraction or exponent applying to the entire population.

5 0
3 months ago
When Mendel crossed the pollen from a plant with green pods with a plant with yellow seed pods, all of the offspring had green s
lana [2441]

Answer: This indicates that the allele for green pods is dominant over that for yellow pods.

Explanation: Dominant traits will manifest even in the presence of the alleles for other traits. If every offspring shows green pods despite carrying the allele for yellow pods, it confirms that green is the dominant trait.

4 0
3 months ago
Read 2 more answers
Other questions:
  • Figure 1 represents a segment of DNA. Radiation can damage the nucleotides in a DNA molecule. To repair some types of damage, a
    14·1 answer
  • Ryan accidentally drops a very heavy object on his foot. In a matter of just a few seconds, he feels a tremendous amount of pain
    6·2 answers
  • The "endosymbiotic hypothesis" is a concept that explains _____. How eukaryotic cells might have evolved mitochondria and chloro
    12·1 answer
  • What evidence links echinoderms, hemichordates and chordates to the same evolutionary lineage?
    8·1 answer
  • If a muscle fiber were to suddenly and permanently stop producing ATP the fiber would no longer be able to actively transport ca
    15·1 answer
  • 3. Were there any stages of the cell cycle that you did not observe? How can you explain this using evidence from the cell cycle
    15·1 answer
  • Fossils show how the complexity of living organisms has changed over time. Gerobatrachus hottoni was a unique organism that live
    9·1 answer
  • What is the relationship between biodiversity and number of populations?
    11·1 answer
  • Select the events that are a consequence of activating mutations in the ras gene. The ras proto-oncogene is converted into an on
    6·1 answer
  • Name the major types of fibers in molecules in the extracellular matrix of the skeletal system
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!