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
aleksley [76]
3 years ago
9

Can someone please help on these two question Please I don't get this at all I'm really confused

Biology
2 answers:
marissa [1.9K]3 years ago
8 0
Alleles are letters that represent dominant and recessive traits.

A capital letter represents a dominant trait
A lowercase letter represents a recessive trait.

Dominant traits over shadow the recessive ones. This is known as complete dominance.

Referring to your questions let's us the alleles HH, Hh, and hh for the height of the pea plants.

But what do those letters mean?

HH = homozygous dominant (Tall)
Homo means same.

hh = homozygous recessive (Short)

Now this is different: here's Hh.
There's a capital AND lowercase letter.
This means that the plant carries the gene for tall and short plants, and can pass on either trait to the offspring.

BUT the dominant always over shadows the recessive. So Hh is a tall plant.

Hh = heterozygous (hybrid) (Tall)
You can interpret hetero meaning different.

Now I hope you're with me!

For question two it asks if a short plant can ever be a hybrid.
Referring to what I just said, that answer would be no.
Because there is no dominant trait to over shadow the recessive.

And short plants have the hh alleles, and they are homozygous NOT heterozygous (hybrid).

I hope this helps, and makes sense! If you have any questions please let me know. Genetics can be confusing.
kirza4 [7]3 years ago
3 0
Being Tall is a Dominant trait, even if the alleles are Tt (heterozygous), the pea plant would be tall. But if the alleles are tt (homozygous recessive) the pea plant would be short. TT would mean homozygous dominant are result in a pure tall pea plant. 

You might be interested in
A 60-year-old client tearfully explains to the nurse how her husband downplays her frequent migraines and tells her that she nee
Mkey [24]
The correct answer is "ineffective low performance related to migraine headaches".
According to the patient's description, migraine headaches are creating a serious problem regarding her ability to perform all the actions that her role in her family involves. Her role as a grandmother involves taking care of her grandchildren and keeping up her garden as a hobby. These are actions which she can no longer perform due to her headaches. 
6 0
3 years ago
The second part of the mitotic phase, during which cell division is completed by the physical separation of the cytoplasm compon
Allisa [31]
"<span>The second part of the mitotic phase, during which cell division is completed by the physical separation of the cytoplasm components into two daughter cells is called telophase."

Telophase is the last phase of mitosis. The name itself indicates terminal (telo) phase. </span>The chromosomes get to the cell poles and nuclear membranes are formed around each set of chromatids. The actual cell division is called c<span>ytokinesis and it starts at the end of the telophase.</span>
6 0
3 years ago
The most significant greenhouse gas emitted in large quantities by human society is
Lynna [10]
The primary and most significant greenhouse gas emitted from human activities is carbon dioxide. Burning of fossil fuels is the major cause of increased carbon dioxide emission.The burning of coal, oil, and natural gas is an important energy source to produce electricity.
7 0
3 years ago
As described in "A Note About Bacterial Reproduction -- and the "Culture Bias,"" the organism Epulopiscium does not divide by bi
gayaneshka [121]

In liquid media or broth difference between dry and wet will give biomass of the Epulopiscium.

Explanation:

Biomass of bacteria can be measured by dry or wet mass. Bacteria numbers can be counted by spread plate method under the microscope.

In solid media the colonies obtained are diluted and number of cells will be seen by plate count method or on automated cell counter. The number would help calculate biomass

The biomass will be calculated by measuring wet and dry mass. Equipments required will be:

hydraulic gravity convection oven and centrifugation set up.

A cellulose acetate filter membrane is used which is 47 mm in diameter and 0.45 micron of pore size.

The cells  grown settles down due to gravity. They are stirred to evenly spread in the broth and is kept in centrifuge.

The cells obtained after centrifugation will be taken and wet weight is obtained.

To obtain dry weight the cells are placed in oven for 6 hours to 24 hours. The resultant cells are weighed and dry weight obtained.

Biomass will be calculated by subtracting the wet mass to dry mass. This way biomass is obtained in epulopisicuium. Here the cells will be of different size so on centrifugation 2 or more phases of cells can be seen due to gravity change.

8 0
3 years ago
If the forces acting upon an object are balanced, then an object MUST
In-s [12.5K]

Must be moving at a constant velocity

Hope this helps :)

4 0
3 years ago
Read 2 more answers
Other questions:
  • This is the period during the cell cycle when the cell is neither preparing for cell division nor dividing; it is growing while
    9·1 answer
  • What is an irreversible process of deterioration in the body's systems and organs?
    8·1 answer
  • Color and label all key structures
    10·1 answer
  • There are many methods for producers to convert organic (carbon-containing) molecules into something useful
    15·1 answer
  • he diagram illustrates one method of genetic recombination. Which method of genetic recombination is illustrated in the diagram?
    15·2 answers
  • Where are the strongest jet streams located?
    13·2 answers
  • What device converts the various forms of energy into electrical energy?
    11·1 answer
  • Cell types have in common
    8·1 answer
  • Water molecules are ____ due to _____ bonding. This property helps water molecules to stick to each other and allows for the mov
    7·1 answer
  • Herbivores get energy by eating plants. Plants get energy from sunlight. Why does most of the energy captured by plants never be
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!