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
gizmo_the_mogwai [7]
4 years ago
8

In a cross of AaBb x AaBb, what fraction of the offspring can be expected to express one of the two dominant alleles, but not bo

th?
Biology
1 answer:
Zepler [3.9K]4 years ago
6 0

Answer: 1/4 (4 out of 16 offsprings express one of the two dominant alleles)

Explanation:

The dominant alleles are A and B

At the end of the cross AaBb x AaBb, 16 offsprings would result. They are as follows: AABB, AABb, AaBB, AaBb

AABb, AAbb, AaBb, AABB,

AaBB, AaBb, aaBB, aaBb,

AaBb, Aabb, aaBb, aabb.

Of all, only 4 offsprings (aaBb, aaBB, AAbb, Aabb) expresses one of the A or B. so 4/16 = 1/4

You might be interested in
Which of the following would not be expected to contain tissues?
Nookie1986 [14]
The answer is C : Unicellular bacteria
3 0
3 years ago
Read 2 more answers
In aerobic respiration, what is the direct source of energy that atp synthase uses to synthesize atp?
leonid [27]
For the answer to the question above asking <span>In aerobic respiration, what is the direct source of energy that ATP synthase uses to synthesize ATP?</span><span>I think this is Proton Gradient. It is t</span><span>he product of the electron transport chain. A higher concentration of </span>protons <span>outside the inner membrane of the mitochondria than inside the membrane is the driving force behind ATP synthesis.</span>
4 0
3 years ago
What is different about the compactness of DNA when a gene is turned on versus turned off.
Mnenie [13.5K]

Answer:

Explanation:

Gene expression is a tightly regulated process that allows a cell to respond to its changing environment. It acts as both an on/off switch to control when proteins are made and also a volume control that increases or decreases the amount of proteins made.

3 0
3 years ago
Where does the light independent reaction take place
hjlf

Answer:

stroma

Explanation:

The light-independent reactions represent the known Calvin–Benson–Bassham (CBB) cycle which takes place in the stroma of chloroplasts and is the primary pathway of carbon fixation of C3 plants [119].

4 0
2 years ago
Name the tissue responsible for movement in our body.​
rusak2 [61]
Muscular tissue I’m p sure
7 0
3 years ago
Other questions:
  • Which best describes the aquifers?
    14·1 answer
  • Properties of life .
    8·1 answer
  • Week 11 discussion forum-Ecogenetics is a branch of genetics that deals with the genetic variation that underlies reactive diffe
    10·1 answer
  • Low blood levels of oxygen can bring on? <br> A. Sneezez<br> B. Hiccups<br> C. Coughs<br> D. Sighs
    14·2 answers
  • Protecting endangered animals is a different process because
    5·1 answer
  • Which type of pollution includes CFCs and smog? Air, land, water or volcanic
    8·2 answers
  • Which statement best describes a condition that would enable a hydrophobic solute to enter the cell?
    14·1 answer
  • 2. What molecules do cells need to function?
    12·1 answer
  • Human red blood cells can live from two to four months without a nucleus, and yet they continue to synthesize hemoglobin. This G
    13·1 answer
  • Plssssssss helppppppppo
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!