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
love history [14]
2 years ago
6

1. a man and woman are both affected with the brca1 gene for familial breast cancer, a disease that has 80% penetrance in all in

dividuals who carry the allele. they are both heterozygotes for the disease-causing mutation. what is the probability that they will have a phenotypically normal child?
Biology
1 answer:
allochka39001 [22]2 years ago
8 0

The probability to have a phenotypically normal child will be 40% because parents are both heterozygotes for this disease-causing mutation that has 80% penetrance.

<h3>What is genetic penetrance?</h3>

The expression genetic penetrance refers to the chances of expressing a given phenotype which may be associated with both genetic and environmental factors.

In conclusion, The probability to have a phenotypically normal child will be 40% because parents are both heterozygotes for this disease-causing mutation that has 80% penetrance.

Learn more about genetic penetrance here:

brainly.com/question/5662654

#SPJ1

You might be interested in
What is the greenhouse effect? A. Reflection of all heat from the sun back into space. B. The passing of heat from the sun throu
Anna35 [415]

Answer:

I also think the answer is D

8 0
2 years ago
Which of the following is an example of aposematic coloration? A) stripes of a skunk B) eye color in humans C) green color of a
nignag [31]

Answer:

A) stripes of a skunk

Explanation:

The aposematic coloration is coloration that has been developed by the living organisms in order to warn the predators that they can be dangerous and harmful, thus to not attack them. Usually this type of coloration tends to stick out significantly when compared with the coloration of the other species that do not exhibit it, thus making it much more easy for the animal or plant to be recognized by the predators, which is benefiting both sides. The coloration of the skunk is a nice example of aposematic coloration. The skunk has black basis, but it has straight white stripes along its back. The two colors are contrasting, so it sticks out very easily. The predatory animals immediately notice it and just move along and do not bother the skunk because they are aware that it can pose a danger to them if they attack it.

8 0
3 years ago
How do active and passive transport differ? is osmosis active or passive
goldenfox [79]
Well, the cell membrane is full of a bunch of little holes. Sort of like a coffee filter.

What does a coffee filter do? Well, you put the coffee in it and run water through it. Then what?

The water is small enough to pass through the filter and bring some of the coffee with it. But the coffee grains are too big to pass through the filter. If we really wanted the coffee grains to get through the filter, we could force them through. Do you want chunks in your coffee? Eww. 

Now the cell membrane is the same way, the little things (water, carbon dioxide, oxygen, sugar) are all small enough to fit through the tiny holes in the cell membrane. This is called, "Passive Transport". Because the things can passively float their way in and out of the cell.

Now some other things are too big to fit through, so to make them fit, the cell has to use energy to open itself a little bit more to let them in. This is called, "Active Transport". Because the cell needs to be active and use energy to let those things in.

<span>Now Osmosis is the transfer of water and salts (basically) throughout the cell.
Both Salt and Water are small enough to fit through the Cell Membrane using "Passive Transport".

I've posted this same response earlier, and it is my writing.</span>
8 0
3 years ago
Read 2 more answers
The part of the nervous system that controls voluntary activities is the
Free_Kalibri [48]

Answer:

somatic nervous system

Explanation:

The motor division of the peripheral nervous system includes a somatic nervous system and an autonomic nervous system. The somatic nervous system (SNS) delivers motor information from the central nervous system to skeletal muscles only. Therefore, the motor responses of the somatic nervous system are consciously controlled by humans. This makes it control the voluntary actions of the body. The somatic nervous system includes the somatic motor neurons that connect the skeletal muscles with the central nervous system.

4 0
3 years ago
Mary wants to remove a dent from a ping-pong ball without cutting into the sealed ball. she decides to put the ball in a bowl of
Misha Larkins [42]

The right option is; b. the water caused an increase in temperature of the air inside the ball and an increase in pressure.

The dent (hollow area formed by pressing or hitting) from the ping-pong ball disappeared because energy was transferred from the hot boiling water in which the ball was placed to the air inside the ball. This transferred energy will increase the temperature of the air inside the ball and the air molecules will begin to move faster with a greater force. Hence, causing an increase in pressure.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Single-celled, microscopic organisms that reproduce by dividing in half, they lack nuclei, and live in extreme places like hot s
    14·1 answer
  • Which cell is the most active lysosome
    11·1 answer
  • Which describes the relationship between a genotype, a phenotype, and an organism’s experiences?
    11·2 answers
  • Compare the accuracy between electronic balance and double pan balance?
    7·1 answer
  • Which of the following is a true statement about the theory of evolution?
    5·1 answer
  • Researchers today can use technology such as fMRI scans to measure brain activity. Some researchers ask their subjects to descri
    6·1 answer
  • In their experiment to form a primitive living cell, Urey and Miller set up various flasks with water vapor and the gases CO @,
    7·1 answer
  • The light reactions of photosynthesis use ____ and produce _____. A. NADPH; NADP* b. Water; NADPH &amp; ATP c. Carbon Dioxide; s
    11·1 answer
  • Help pleaseeeee
    6·2 answers
  • What is the difference between an endothermic and exothermic reaction?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!