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
Ivenika [448]
3 years ago
7

A biologist pollinates a true-breeding yellow flower with pollen from a true-breeding red flower of the same species. All of the

F1 offspring are yellow. What question can be answered with the F2 cross?
Biology
1 answer:
Xelga [282]3 years ago
5 0

Answer:

See the answer below

Explanation:

The question that can be answered with the F2 cross would be <u>if the yellow flower color is dominant over the red flower color in the species</u>. In other words, <u>whether the inheritance of flower color follows a simple Mendelian inheritance or otherwise can be answered.</u>

<em>Assuming that the inheritance of the flower color follows the Mendelian pattern, the red flower trait would re-emerge among the F2 offspring and the ratio of yellow to red flower offspring would approximately be equal to</em><em> 3:1.</em><em> Otherwise, a more complex pattern of inheritance would be involved.</em>

You might be interested in
Can someone please help me with 1 evolution question ?
geniusboy [140]
Antibiotic resistance is a consequence of evolution via natural selection. The antibiotic action is an environmental pressure; those bacteria which have a mutation allowing them to survive will live on to reproduce. They will then pass this trait to their offspring, which will be a fully resistant generation.
8 0
3 years ago
Several fish species became extinct millions of years ago. The graphs provided below show the distribution of fossils of these f
cestrela7 [59]
1. Explain why the distribution of fossils in Figure 1 supports the hypothesis that the extinction of these species was the result of a sudden environmental change.
This hypothesis can be supported because all the fossils accumulate almost at the same age of the rock layer. That is, all the fossils died almost at the same time.

2. Describe an environmental change that could have produced this type of fossil distribution.
Good examples of sudden environmental changes are volcanoes. When a rash occurs, the whole environment suddenly changes for different reasons such as ash or lava, and all living things can die immediately or in a few years by the change in the ecosystem.

3. Explain why the distribution of fossils in Figure 2 supports the hypothesis that the extinction of these species was the result of a gradual environmental change.
This is because the fossils accumulate at different ages of the rock layer, that means, the species dying over time. The gradual descent of the fossils is observed.

4. Describe an environmental change that could produce this type of fossil distribution.
For example, if a climate change occurs - the temperature increases or decreases - it can cause the trees or plants to die and all the animals in the ecosystem also die when they have no food. But this process is sequential, so the change can take years, centuries or even millions of years.

I hope this can help you.
4 0
3 years ago
Which two body systems interact to expel the waste product carbon dioxide
Pani-rosa [81]

Answer:

excretory system  and circulatory system

Explanation:

Blood is  part of circulatory system and as it move through various organs it exchanges the gases i.e give oxygen to the cell and take carbon dioxide from them. After taking CO2, the  blood becomes impure and hence it passes through the kidney before going to the heart. Kidney is part of excretory system which removes carbon dioxide from blood and thus purifies it.  

7 0
3 years ago
Which of the following statements concerning carbohydrates associated with the plasma membrane is correct? (eText Concept 7.1)
Ksju [112]

Answer:

The correct answer is : * Membrane carbohydrates function primarily in cell-cell recognition.

Explanation:

The carbohydrates (poly or oligosaccharides) associated with the plasma membrane, are covalently bound to it (to proteins or lipids). They are found in the outer part of the plasma membrane forming the glycocalix. Its main functions are:

-Cell recognition

-Support to the membrane.

8 0
3 years ago
What type of muscle contraction occurs when a muscle is exerting force equal to that placed on it, resulting in no appreciable c
iogann1982 [59]
Volunteers muscle relaxers length
6 0
3 years ago
Other questions:
  • Which viral genome is likely to require an RNA-dependent RNA polymerase for transciption upon viral entry?
    10·1 answer
  • Stem cells are cells that can differentiate into many different kinds of cells. Scientists have discovered that the environment
    7·1 answer
  • What distinguishes disruptive and directional selection pressures when both select for extreme genetic traits?
    11·2 answers
  • An elements atomic number is 10. How many protons would an atom of this element have?
    9·2 answers
  • 1. What organism has the smallest number of chromosomes​
    13·1 answer
  • GIVING 40 POINTS AND BRAINLIEST!! I NEED HELP FINDING THE EPICENTER. CAN SOMEONE PLEASE SCREENSHOT THE PICTURE AND FIND THE EPIC
    10·1 answer
  • What is the product of meiosis ii
    6·2 answers
  • The second stage of the digestive process takes place in the
    15·1 answer
  • Which of the fallowing structures is built to protect boats from large breaking waves?
    10·1 answer
  • What are some abiotic factors that might effect some biotic factors
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!