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
kakasveta [241]
2 years ago
15

In genetics, the dash symbol (–) is a "wild card" that stands for either the dominant allele or the recessive allele; for exampl

e, A– means the individual has either the genotype AA or Aa. Two genes that undergo independent assortment affect the shape of the seed capsule in the broadleaf weed known as shepherd's purse. Each gene has two alleles, one of which is dominant for the shape of the seed capsule. Genotypes of the form A– B–, A– bb, and aa B– have triangular seed capsules, whereas the seed capsules of aa bb genotypes are ovoid. What ratio of triangular : ovoid is expected from the cross Aa Bb x Aa Bb?
Biology
1 answer:
bearhunter [10]2 years ago
3 0

Answer:

1/16 are ovoid

Explanation:

Hello!

From an AaBb genotype we can obtain four possible gametes AB, Ab, aB and ab.  With the Punnett square we can observe the crossing.  In the second Punnett square we can see the form A– B–

AB          Ab           aB          ab

AB AABB AABb AaBB AaBb

Ab AABb AAbb AaBb Aabb

aB AaBB AaBb aaBB aaBb

ab AaBb Aabb aaBb aabb

AB          Ab          aB          ab

AB A-B-  A-B-  A-B-  A-B-

Ab A-B-  A-bb A-B-        A-bb

aB A-B-  A-B-  aaB- aaB-

ab A-B-  A-bb aaB- aabb

The genotypes of the form A– B–, A– bb and aa B– have triangular seed capsules (15 of 16), while the seed capsules of the aa bb genotypes are ovoid (1 of 16).

Successes with your homework!

You might be interested in
Traits are inherited ________ of alleles.
Ira Lisetskai [31]
Through the actions of alleles

7 0
3 years ago
Read 2 more answers
Consider the cooling curve above. The substance is changing state from a gas to a liquid to a solid. As the temperature changes
Anni [7]

Answer: B)  there is a decrease in kinetic energy and the molecules get closer together.

Explanation: Kinetic energy is directly proportional to temperature, thus as temperature decreases, kinetic energy also decreases.

Gas is the state of matter in which particles are very loosely bound and hence can easily move past one another very easily and have highest kinetic energy.

Liquid is the state of matter in which particles are loosely bound and hence can move past one another easily and have high kinetic energy.

Solid is the state of matter in which particles are tightly bound and hence can not move easily and have low kinetic energy.

Thus on moving from gaseous to solid state, the kinetic energy decreases and the molecules get closer together.


3 0
3 years ago
Read 2 more answers
Water changes from a liquid to a gas in the process of evaporation
Rudiy27
Your answer is true lol  hope that helped
8 0
3 years ago
Read 2 more answers
A molecule containing two atoms of hydrogen and one atom of oxygen in combination is called
timama [110]
<span> the water compound of </span><span>H2O</span><span>. hope this helps </span>
5 0
3 years ago
Read 2 more answers
7. another word for eating<br><br>science order and design​
Nuetrik [128]

Answer:

devour

Explanation:

the biology name ( another name) of eating is devour.

5 0
3 years ago
Other questions:
  • Tonsils are to the throat as ____ are to the small intestine.
    13·1 answer
  • The energy released when sugar molecules are broken down is transferred to bonds in which molecule
    11·1 answer
  • In the hershey and chase experiment that helped confirm that dna,not protein, was the hereditary material, what was the key find
    14·1 answer
  • You know that the narrow-sense heritability of milk production in Ayrshire cattle is 0.587. You perform an experiment where you
    13·1 answer
  • The lab setup shows four test tubes. Tube 1 contains water only. Tube 2 contains a live snail. Tube 3 contains a live green wate
    13·1 answer
  • The hypothesis that continents have moved slowly to their current locations is called
    13·1 answer
  • What are the most diverse ecosystems on Earth?
    11·2 answers
  • According to the system of biological classification, human beings, cats and elephants are placed in the same ?
    12·1 answer
  • what would occur if the pistil of the flower would not be sticky at the top? what would that mean for the reproduction of the fl
    15·1 answer
  • Scientific investigations involve many steps and processes. Which characteristics define a laboratory experiment?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!