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Ludmilka [50]
3 years ago
9

Why is the son who recieves the allele for colorblindness from his mother always colorblind?

Biology
1 answer:
Tanya [424]3 years ago
6 0
Beacuse men only have one X chromosome so beacuse colourblindness is found on the X chromosome then if the X inherited from his mother contains the allele for colourblind then he will be colourblind. women have two X chromosomes so even if they inherit one colourblind allele then if the other X contains a normal vision allele then they will be able to see normally.
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Maria predicts that the amount of light in an environment will affect the growth of algae living in that environment. Which of t
Sati [7]

Answer:

Option A is the correct answer. To conduct a controlled experiment would be the best choice for Maria to test her prediction.

Explanation:

A controlled experiment can be described as an test in which one of the test models is kept constant for a variable, while in other experimental models, a change is made for testing the variable.

It would be best for Maria to conduct a controlled experiment. In the control model, Maria should keep light as constant whereas in other experimental models she should increase and decrease the quality of light to test her prediction. She should then compare her experimental results with the control model to deduce the results.

3 0
3 years ago
Read 2 more answers
Which of the following substances are too large for carrier proteins?
zimovet [89]
A glucose molecule is too large to pass through a cell membrane via simple diffusion. Instead, cells assist glucose diffusion through facilitated diffusion and two types of active transport.

So the answer is B
8 0
2 years ago
Count the number of bases?​
DENIUS [597]

podrias ser mas especifico??

4 0
3 years ago
1.
Hitman42 [59]

Steps to improve food safety in commercial food preparation units like restaurants .

  1. Wash and sanitize hands to begin food preparation
  2. Clean & sanitize the prep sink or the 3-comparment sink
  3. Remove smallwares & dishes from the preparation area
  4. Set up equipment for food preparation

Explanation:

Food contamination is the major source for foodborne infections and illnesses

Ensuring safe food preparation, cooking and storage practices are prime importance for any commercial food preparation unit like restaurants, hotels, etc

The standardized procedures while cleaning, separating, cooking and storing food should be followed.

Cleaning processes first include personal cleaning as well as cleaning the preparation.

Personal cleaning includes washing and sanitizing the hands periodically before, during and after food preparation and after any other activities like using the toilet, baby dressing, touching garbage etc

Cleaning the preparation area including the 3-compartmental sink for washing, rinsing and the sanitizing

Separating the utensils as per cooking methods and dishes like using separate cutting knives or boards for raw and cooked meat, poultry or fish products

Cooking the food at a right temperature depending upon the type of cooking

Storing or chilling processes appropriately according to the food type under appropriate temperature should be followed.

5 0
3 years ago
Plz help<br> plz help<br> plz help<br> plz help<br> plz help<br> plz help<br> plz help
Zolol [24]
I would say it is true and if it isn’t then I’m sorry.
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2 years ago
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