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
RUDIKE [14]
3 years ago
14

Describe the characteristics of the garden pea that made it a good organism for Mendel's analysis of the basic principles of inh

eritance. Evaluate how easy or difficult it would be to make a similar study of inheritance in humans by considering the same attributes you described for the pea.
Biology
1 answer:
Marysya12 [62]3 years ago
3 0

Answer and explanation:

The garden pea had many advantages to be used as a model in inheritance studies. These plants grow very fast, so you can rise several generations in little time. This fundamental if you want to do this kind of studies. The study object needs to have a brief generational time, so they can be selected and their descendants can be raised again. Another advantage was that garden peas can be raised easily. They don't need any special care. Besides, they were common in the market. Mendel could find them and bought them any time that he wants. Also, they presented visible characteristics that could vary from one plant to another. Some pea gardens had violet flowers, while others had white flowers. Some were tall, while others were small. These made possible to select plants with specifics features and to study if they could transmit these features to the next generations.

It could be really difficult to do the same experiment in humans. several years would have to pass to observe new generations, so during the lapse time of the researcher, only a few human’s generations could be studied.

You might be interested in
Gene expression within the body is controlled by the cells, which determine when a specific gene should or should not be express
Step2247 [10]

Answer: The gene that controls the production of white blood cells will be widely expressed

Explanation: White blood cells fight off viruses so when a virus is detected the genes for white blood cells will be activated.

6 0
2 years ago
Is blood clotting an example of a positive or negative feedback mechanism? Explain your answer based on the description of the m
serg [7]

Answer:

Blood clothing is an example of positive feedback.

This type of feedback mechanism is useful to the body because it multiplies the factor that intervenes in clotting accelerating the process.

If a toxin affects the molecules that signal for platelets the feedback will not be effective enough to produce clotting and the body will keep bleeding.

Explanation:

Blood clotting is an example of positive feedback due to the fact that when the vascular endothelium is damaged  platelets will go to this area and activate themselves once they are in contact with the collagen fibers of the damaged structure. When the platelets are activated they will release the contents that is stored in their granules. One of the contents is a Gq-linked protein receptor cascade,  that will increase the concentration of calcium in the platelets. Calcium activates protein kinase C, which, in turn, activates phospholipase A2 (PLA2). PLA2  will modifies  an  integrin membrane  increasing its affinity to bind fibrinogen. The activated platelets change their  shape , and the fibrinogen cross-links with the integrin membrane aiding  in  the aggregation of adjacent platelets. After this the coagulation cascade takes place. there are two pathways the extrinsic  and the extrinsic one.

The extrinsic pathway will be activated due to tissular factor released  by the platelets and the intrinsic pathway will be activated due to endothelial collagen. The final product of both pathways is factor x.

Factor x will transform prothrombin into thrombin will activate the conversion of fibrinogen into fibrin. Thrombin will form a net of fibrin that will the clot.

A cascade reaction is useful because every component of the cascade are related making a quick reaction once that one of then is activated and can activate other or more factors.

If a toxin affects the molecules that signals for platelets, platelets will not go to the damaged area and in consequence there will not be thrombin and fibrin to form the clot together with platelets.

7 0
3 years ago
How can scientists determine the relative age of the fossil?
Strike441 [17]

Answer:

Radiometric dating methods

Explanation:

Geologists usually use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon to find the age of fossils.

7 0
2 years ago
Give two reasons why theism makes more sense than atheism.
schepotkina [342]

Answer:

1. it's difficult

2.more harder

<u>Explanation</u><u>:</u>

lt have sense

4 0
3 years ago
The table below lists the typical diploid number of chromosomes of several different organisms.
Lubov Fominskaja [6]
The correct answer is D
6 0
2 years ago
Other questions:
  • The transcription terminator stops DNA polymerase, AND results in the polymerase falling off the DNA template. adds a terminator
    10·1 answer
  • One student did an experiment on the rock cycle. The steps of the experiment are shown below. Pile wax shavings of different col
    9·2 answers
  • Cycles of four chemicals essential to life on earth: water, carbon, nitrogen and phosphorus. be sure to use appropriate key term
    9·1 answer
  • How many and what are the processes that seed plants use to reproduce.
    6·1 answer
  • What is deoxyribose?
    13·1 answer
  • Animals that change greatly as they mature are said to undergo _____.
    6·2 answers
  • Select ALL of the following will likely happen if we (humans) don't do anything about global warming. *
    14·2 answers
  • What are homologous chromosomes?
    7·2 answers
  • For an action potential to be transmitted to the next neuron, it must first be ______ at the axon hillock.
    8·1 answer
  • Which best describes global warming?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!