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
balu736 [363]
3 years ago
13

Suppose in pine trees long needles (L) are dominant to short needles. Cross a

Biology
1 answer:
jasenka [17]3 years ago
6 0

Answer: Let the homozygous dominant long needled be (LL) and the homozygous recessive short needled be (ll).

Then the genotypic ratio is four heterozygous long needles (4Ll) while the phenotypic ratio is four long needled trees.

Explanation: The long needles (L) is dominant over the short needles (l), therefore the genotype of all the offsprings are Ll and they will manifest outwardly as long needled trees.

See the attached punnet showing the cross between them

You might be interested in
Which statement about stress is true? Stress occurs when the body physically sustains grave injury due to environmental factors.
evablogger [386]
Base on the question which ask to choose among the following choices that state the statement the is telling the truth about stress and base on my further research, and further investigation, the answer would be <span> Acute stress is healthy and productive, unlike chronic stress. I hope you are satisfied with my answer and feel free to ask for more </span>
8 0
3 years ago
Read 2 more answers
One possible explanation for the fact that some simple, one celled organisms did not even evolve into complex multicellular orga
mina [271]
The answer is that they have traits that enabled them to survive in a changing environment.

During the evolution of the Earth, and later during the evolution of life, the environment was not constant. Change in the environment could lead to an extinction of some species. But, some species were able to adapt or could tolerate a wide range of environmental factors. One of the explanation, why unicellular organisms did not evolve into complex multicellular organisms is because they have traits that help them to tolerate the wide range of factors, and thus, survive in changing environment.
5 0
4 years ago
What is a fuel body use for energy
olya-2409 [2.1K]

Answer: Carbohydrates like sugar and starch are readily broken down into glucose, which is the body's main energy source. Glucose can be used immediately as fuel or stored as glycogen.

6 0
4 years ago
Which of the following structures serve as the cells boundary form it’s environmen
Darina [25.2K]

Answer:

The cell membrane

Explanation:

The cell membrane, sometimes also known as the plasma membrane, serves as a clear boundary between the inside of a cell and its outer environment.

6 0
4 years ago
There is a spot on the retina commonly called the “blind spot.” the blind spot exists because ________.
DIA [1.3K]
That is where the fibers of the optic nerve exit the eye extending into the brain. there are no rods and cones there as a result.
4 0
3 years ago
Read 2 more answers
Other questions:
  • This symbol on your local weather map means that you should expect what kind of weather
    7·1 answer
  • Diferencia entre estimulo y receptor
    6·1 answer
  • The energy needed for active transport is usually supplied by
    10·1 answer
  • In pea plants, the allele for tallness is dominant. What are the possible genotypes of a tall pea plant?
    10·2 answers
  • An amoeba is a single-celled organism that feeds on algae, plants cells, bacteria. When an amoeba feeds, it first makes contacts
    8·2 answers
  • How many fat cells are in a human being ?
    5·2 answers
  • Explain how the passing of traits to offspring is different in asexual reproduction and sexual reproduction. Give a brief exampl
    5·1 answer
  • Compare blood cells to plant cells
    11·1 answer
  • How does the conservation of matter relate to the process of digestion?
    9·1 answer
  • How does the bacterial chromosome differ from the chromosomes found in eukaryotes
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!