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
Svetllana [295]
2 years ago
6

Ở đậu Hà Lan, gen A quy định thân cao trội hoàn toàn so với alen a quy định thân thấp. Cho cây thân cao giao phấn với cây thân c

ao, thu được F1 gồm 900 cây thân cao và 299 cây thân thấp. Tính theo lí thuyết, tỉ lệ cây F1 tự thụ phấn cho F2 gồm toàn cây cao so với tổng số cây cao ở F1 là bao nhiêu?
Biology
1 answer:
Bad White [126]2 years ago
6 0

Answer:

Ở đậu Hà Lan, A- thân cao, a-thân thấp. Cây thân cao giao phấn với cây thân cao — F1 có tỷ lệ 900 thân ca0:299 thân thấp — tỷ lệ 3:1 — cây thân cao có kiểu gen dị hợp Aa. Tỷ lệ F1 tự thụ phấn cho cho F2 toàn cây thân cao → F1 đồng hợp AA → chiếm 1 phần 4

P: Aa x Aa → 1 phần 4 AA: 2 phần 4 Aa: 1 phần 4 aa

You might be interested in
What is the function of the mouth in the digestive system
Shtirlitz [24]
The mouth is the beginning of the digestion tract , our mouth also produces enzymes to begin the process of digestion
6 0
3 years ago
What is combustion and how does it affect the carbon cycle?
snow_tiger [21]
<span>During photosynthesis, plants use carbon dioxide and produce oxygen. During metabolism oxygen is used and carbon dioxide is a product. Humans impact the carbon cycle during the combustion of any type of fossil fuel, which may include oil, coal, or natural gas.</span>
6 0
3 years ago
Read 2 more answers
What is the most likely explanation for wes's observations?
Lyrx [107]

The red blood cells were placed into an isotonic solution. Water moved into and out of the cells to maintain homeostasis.

4 0
2 years ago
There are so many microbes in a single mL of culture, it is very difficult to perform one dilution to produce countable cells. M
Feliz [49]

Answer:

cumulative dilution = 0.000001

Explanation:

A serial dilution is a stepwise kind of dilution repeated a certain number of times, in which the concentration reduces exponentially each time.

The cumulative dilution is the final dilution gotten depending on the number of times dilution has been done and the dilution factor. The formula is given as:

Cumulative dilution = (F)ⁿ

where:

F = dilution factor = 0.1

n = number of serial dilutions = 6

∴ cumulative dilution = (0.1)⁶ = 0.000001

4 0
2 years ago
The Sun has a part in many natural processes on Earth, such as _____.
sammy [17]
All of the above, here's an explanation. The sun helps the water cycle due to evaporation which causes it to turn into a steam/gas. Now for wind, it's because the sun heats up the air and causes thermal energy which later turns into wind. And finally, weather, obviously the sun evaporates water which causes it to be rainy/drowsy.
6 0
2 years ago
Read 2 more answers
Other questions:
  • Which class of macromolecule does ATP belong to?
    12·1 answer
  • During the synthesis of messenger RNA (mRNA) from DNA, how many strands of DNA are copied to produce a single strand of mRNA
    13·1 answer
  • Digestion takes place inside _______ containing _______?
    6·1 answer
  • Suppose you have monohybrid pea plants in your garden and find that they produce round seed to wrinkled seeds in
    9·1 answer
  • What is the biggest animal in the world
    10·2 answers
  • If a 50kg car is pulling a 30kg car, how much force would be required to accelerate the cars at 2m/s/s?
    13·1 answer
  • Brainliest someone help me plz
    11·1 answer
  • LABEL THE DIAGRAM OF THE LEAF
    9·1 answer
  • Use the Pedigree Chart to answer the following question
    10·2 answers
  • Which one of the following is an example of a prokaryote?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!