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]
3 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]3 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 are the characteristics of bacteria
Hitman42 [59]

Answer:

like Eukaryota cells in that they have cytoplasm, ribosomes, and a plasma membrane.

Explanation:

eukaryotic cell include the circular DNA of the nucleoid, the lack of membrane-bound organelles,

6 0
3 years ago
Read 2 more answers
Why people cannot live on neptune two reson ?​
zysi [14]

Answer:

The inside of Neptune is very cold, which is about -214 degrees. Hence, no microorganisms could live there. Overall, the environment of Neptune sounds very unfriendly to life as we know it on earth.

3 0
4 years ago
Read 2 more answers
Fossil fuels, like the gas we put into our<br> cars, comes from:
Korvikt [17]
The answer would be c, fossil fuel comes from the decaying fossils underneath the ground from millions of years ago.
4 0
3 years ago
Which branch extends from the ocean floor to the top of the atmosphere
MakcuM [25]

Answer: Meteorology

Explanation:

Meteorology could be described as the study of the atmosphere which basis it's emphasis on weather processing and forecasting. Meteorology draws a combination or conclusion between the rains coming down on the earth surface which is being predicted based on how the cloud appears. This brand extends from the atmosphere to the surface of the ocean.

4 0
4 years ago
13. Beginning with the producer, which represents the correct order in a typical food chain?
Anastaziya [24]
Producer, primary consumer, secondary consumer, tertiary consumer, and decomposer.
i hope this helps. if it did please mark brainliest.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Type of material transport that requires energy from the cell
    11·1 answer
  • A home health nurse is visiting a client who underwent right-sided mastectomy with lymph node removal. the client is concerned a
    7·2 answers
  • What is one result of Meiosis?
    9·2 answers
  • Which organelles are found in both plant and animal cells
    5·1 answer
  • 7. List 2 reasons phosphorus is critical for living organisms. Where is it stored?
    11·1 answer
  • Which statement about the cell membrane is true?
    9·2 answers
  • Why is zachs hair dark like his mothers and not bond like his fathers​
    7·1 answer
  • A/an _______ is a type of research that involves observation and collecting data but does not include a control.
    6·1 answer
  • What does it mean if there is a lot (vs. a little) amount of carbon dioxide left?
    5·1 answer
  • If the mountain lion is removed from the food web. what will most like happen? A Nothing will happen in the food web B the robin
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!