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
Ipatiy [6.2K]
3 years ago
8

Two humans mate who are heterozygous for earlobe shape where attached earlobes (A) are dominant to free earlobes (a), and earwax

quality where dry earwax (e) is recessive to wet earwax (E ). What is the probability that their first child will have dry earwax and attached earlobes
Biology
1 answer:
MariettaO [177]3 years ago
7 0

Answer:

3/16

Explanation:

This question involves two different genes coding for earlobe shape and earwax quality. The alleles for attached earlobes (A) and wet earwax (E) are dominant over the alleles for free earlobes (a) and dry earwax (e).

According to this question, two humans mate who are heterozygous for both genes i.e. AaEe × AeEe. Each parent will produce the following gametes: AE, Ae, aE, ae.

Using these gametes in a punnet square (see attached image), the following proportion of offsprings will be produced:

* Attached earlobe, wet earwax (A_E_) = 9/16

* Attached earlobe, dry earwax (A_ee) = 3/16

* Free earlobe, wet earwax (aaE_) = 3/16

* Free earlobe, dry earwax (aaee) = 1/16

Hence, the probability of these parents having their first child with dry earwax (ee) and attached earlobes (A_) i.e. genotype A_ee is 3/16.

You might be interested in
Which brain area is considered to be the integrating center for homeostasis?
stich3 [128]

Answer:

A

Explanation:

The hypothalamus is a portion of the brain particularly concerned with homeostasis; it influences the action of the medulla oblongata, a lower part of the brain, the autonomic nervous system, and the pituitary gland.

3 0
3 years ago
Which of the letters represents an interneuron? A B C D
emmainna [20.7K]
Interneurons are those neurons that transduces the vague information received from the afferent neurons and sends a response to the efferent neurons. 

Neurons are the basic unit of the nervous system. Hence, these nerve cells are the cells that transmits electrical impulses that causes a person to respond, move and irritable (respond to stimuli). 
8 0
3 years ago
The substance used to separate the proteins from the dna
Genrish500 [490]

DNA is deoxyribonucleic acid, which is insoluble in ethanol. In the process of centrifugation the addition of ethanol can aid to separate protein from its DNA.

<h3>What is centrifugation?</h3>

Centrifugation is a process of separating different molecules in a given sample that have different densities by rotating them in solution around an axis at high speed.

It is the frequently applied techniques in the molecular biology laboratory.

The addition of alcohol or ethanol to the sample followed by centrifugation can separate the proteins from its DNA.

Thus, the substance used to separate the proteins from the DNA is alcohol or ethanol.

For more details regarding centrifugation, visit:

brainly.com/question/12954017

#SPJ4

7 0
2 years ago
Which of the following is the correct way to include the title of a magazine article in a bibliographic entry? “Basketball’s Sur
BabaBlast [244]
That doesn’t rlly make much sense... you’d joyful search up the answer instead or HMU
4 0
3 years ago
Read 2 more answers
Is penicille a control group
sesenic [268]
Yes it is, an example is a group of animals not treated with it died, but the animals that were survived-- 
3 0
3 years ago
Read 2 more answers
Other questions:
  • Which bonds are found inside a water molecule, between hydrogen and oxygen
    8·1 answer
  • 1. Whats a difference and a similarity between<br> the Water Cycle &amp; Carbon Cycle?
    10·1 answer
  • Name the 3 parts of cellular respiration and where they occur
    12·1 answer
  • PIZZA!! .. a) List all of the ingredients that are in your favorite pizza... ( consider all of the ingredients in the pizza – no
    7·1 answer
  • Someone please go to my account and answer my most recent questions !! id greatly appreciate it!
    6·2 answers
  • Depolarization is to ____ as hyperpolarization is to ____. Group of answer choices
    6·1 answer
  • What is the most common type of desalination plant in the world?
    6·1 answer
  • Plsssss I need help with this taxonomic key. I have been posting this for hours and I'm super stuck plssss help
    6·1 answer
  • About how much energy is lost with each transfer from one trophic level to the next?
    9·1 answer
  • What do you predict might happen if someone introduced a new species that could eat large amounts of algae at a rapid pace, outc
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!