Phenylketonuria (PKU) is a disease that results from a recessive gene. Two normal parents produce a child with PKU. What is the probability that a sperm from the father will contain the PKU allele?

a. 2/3
b. 3/4
c. 1/3
d. 1/2
e. 1/4

Answers

Answer 1

Answer:

d. 1/2

Explanation:

According to this question, PKU (Phenylketonuria) is a recessive condition in humans. A normal human must possess at least a dominant allele in the gene.

In a situation where two normal parents produce a child with PKU. This means that both parents are heterozygous for the condition i.e Pp × Pp. Hence, the heterozygous male (Pp) will produce gametes in the following proportion: P (1/2) and p (1/2).

This means that the probability that a sperm from the father will contain the PKU allele (p) is 1/2 or 50%


Related Questions

Why do you think the temperature does not change while a liquid boils even
though heat is being added to the liquid?

Answers

Answer:

I'm not really sure

Explanation:

At the boiling point, temperature no longer rises with heat added because the energy is once again being used to break intermolecular bonds. Once all water has been boiled to steam, the temperature will continue to rise linearly as heat is added.



I hope you understand:)

List which cell has the listed characteristics
1 Extensions
2 Matrix
3 No nucleus
4 Striated
5 Used in the immune system.

Answers

Red blood cells have no nucleus

White blood cells are used in the immune system

Skeletal muscle cells are striated

Cartilage cells make up the cartilage matrix
and Neurons have extensions

which answer is correct?
1)the effector
2)receptors
3)the spinal cord
4)the conscious part of the brain
5) neurones ​

Answers

Answer:

4

Explanation:

the female reproductive and endocrine systems work interactively for which main purpose?​

Answers

Answer: To control hormone levels to prepare the body for pregnancy

Hope this helps!! :)

Answer:

To control hormone levels to prepare the body for pregnancy

Explanation:

Could someone explation for me ?
I was ask yesterday but wrong answer !!

Answers

I think it’s D and F, not sure

 If a translation of (x, y) → (x + 6, y – 10) is applied to figure ABCD, what are the coordinates of D'? (–5, –2) (1, –12) (4, –15) (–9, –6)​

Answers

Answer:1,-12

Explanation:

Answer:b

Explanation:

Pls pls help 88 points if u answer this. The subject is science

Answers

Answer:

1. 400

2. 3

3. twice

Explanation:

thx for the points

The earth revolves ____ around the sun each year when viewed from above the North Pole
Help please!

Answers

Answer:

Counterclockwise is the answer?

PLEASE JUST HELP YALL

Answers

Answer - Increase; Cellular Respiration

2. Which blood type would you have if antibodies A and B were made during your first year of life?

Answers

Answer: the possible possibilities are 3 if u have an A and B type of antibodies.

Explanation:

it can be  -- AO  or  AB  or  BO

plus factor will depend upon enzyme presence.

If a person is having both anti-A and anti-B antibodies in blood then the possible blood group of that individual can be O. However, Rh factor cannot be determined by this information.

What is Blood Group?

Blood grouping is the system of classification of blood on the basis of antibodies and antigens in blood which are inherited substances present on the surface of the red blood cells.

Blood groups are classified into four types. These are A, B, AB and O. Blood group A has antigens A on the RBCs with anti-B antibodies present in the plasma. Blood group B has B antigens on RBCs with anti-A antibodies in the plasma. Blood group O has no antigens on the membrane of RBCs and antibodies of both types anti-A and anti-B antibodies in the plasma. Blood group AB has both A and B antigens, but no antibodies in the plasma.

Learn more about Blood groups here:

https://brainly.com/question/2792346

#SPJ2

===================================================================
#teamtrees
Please support the cause. If we all plant a tree, just 1 each, even 1 per family, it will save us from the future that global warming will bring us without these trees. plant a tree today and say to yourself, "wow i just planted a tree for a very important cause, and i saved someone's life today!"
===================================================================

Answers

Answer:   So tlm ( Trees lifes matter) alr aye!!!!!!!

Explanation:

chromosome are made of
how many DNA molecules

Answers

Answer:

A chromosome is formed from a single, enormously long DNA molecule that contains a linear array of many genes. The human genome contains 3.2 × 10^9 DNA nucleotide pairs, divided between 22 different autosomes and 2 sex chromosomes.

Explanation:

HOPE THIS HELPS ;}

Answer:

two

Explanation:

each chromosome is made up of 2 dna molecules

A change in which of the following is least likely to impact primary productivity?

A. Nitrate
B. Dissolved oxygen levels
C. Dissolved carbon dioxide levels
D. Phosphate

Answers

The correct answer is D

Answer:

its C just did the test pennfoster :)

Which of the following is the proper order of the Linnaean system of classification starting at the most specific and moving up?
species, genus, family, order, class, kingdom, phylum
genus, species, order, family, class, phylum, kingdom
species, genus, family, order, class, phylum, kingdom
Species, genus, order, class, family, phylum, kingdom

Answers

Species, genus, family, order, class, phylum, kingdom

Which of the following statements is NOT part of the cell theory?

a. New cells come only from existing cells.
b. The basic unit of structure and function in an organism are cells
c. All cells are identical
d. All living things are made up of one or more cells

Answers

Answer:

c) All cells are identical

Answer:

c. All cells are identical

Explanation:

The three statements are all living things are composed of cells, that cells are the basic units of structure and function in living things, and that new cells are produced from existing cells.

And not all cells are identical as there are different types of cells in the human body and there are different organisms.

(01.01 MC)
What is the difference between a hypothesis and a theory? (2 points)
Select one:
a. A hypothesis is a testable statement, and a theory is well-supported explanation.
b. A hypothesis is a theory that has been proven.
c. A hypothesis is a law of nature, and a theory is always true.
d. A hypothesis is an observation that can turn into a theory.

Answers

Answer:

im almost positive its a

Explanation:

its the only one that makes sense when comparing to the other answers :)

Answer:

A

Explanation:

A hypothesis is what is tested during an experiment while a theory is a phenomenon or outcome that is supported by a significant amount of data and evidence.    

Hypertonic means...
A. High in solute
B. Low in solute
C. Equal in solute
D. Hyperactive

Answers

Answer:

D Hyperactive

Explanation:

Answer:

A.High in solute

Explanation:

Ok,In the reasoning of the word hyper,this brings up a conclusion that it means something high as in raised level thus the term being made to be hypertonic then it refers to the whole term meaning it is a solute of higher or high solute concentration.

Read the information for transcription and then answer the question.


Protein Synthesis


Explain the process of transcription

Answers

Answer:

Protein synthesis is the process which synthesizes proteins by the information coded in the DNA molecule with the help of two distinct process takes place in order namely transcription and translation.

Transcription is the first process of the central dogma or the protein synthesis that produces mRNA molecule that carries all the information stored in the DNA molecule out of the nucleus (in eukaryotes only) to the ribosome where the second process Translation takes place.

Untwists then unzips of DNA molecule is catalyzed by RNA polymerase result in the Hydrogen-bonds between the strands break .

Creates complementary base pairs with bases of the DNA strand with help of free RNA nucleotides

weak hydrogen bonds and sugar-phosphate bonds form between base pairs and RNA nucleotides  respectively

mRNA strand is synthesized  and peels off the DNA and transported or pass from the nucleus to cytoplasm

Answer:

Transcription converts  

*DNA

*mRNA

*Nucleus

*Cell

in this order

Explanation:

How might pandemic flu impact the functioning of society?
Schools may need to be closed
Vaccine manufacturers may shut down.
Workers may need to use their sick leave time.
Healthcare facilities may become overwhelmed.

Answers

Answer:

D.  ?

Explanation:

Kinda whats going on rn lol

Hope this helps!

-BB

Answer:

Health facilities may become overwhelmed. If this is multiple choice picking I would also choose "Schools may need to be closed" and "Workers may need to use their sick leave time."

Explanation:

It's a bit self explanatory, no?

Which of the following best describes a heritable adaptation brought about by natural selection?

Answers

Answer:

polar bears begin to eat goose

Explanation:

Which of the following anatomical directions are opposites?

A. Anterior and posterior
B. Posterior and superior
C. Anterior and superior
D. Posterior and inferior

Answers

The anatomical directions that are opposites of each other are: Option D. Posterior and inferior . Anatomical directions refer to a standard frame of reference used to describe the locations and orientation of body structures.

The following anatomical directions are opposites of each other:Anterior (front) and posterior (back): These are opposites and refer to the front and back sides of the body. The front side of the body is the anterior side, whereas the back side of the body is the posterior side.

Superior (upper) and inferior (lower): These are opposites and refer to the upper and lower portions of the body. The upper side of the body is the superior side, whereas the lower side of the body is the inferior side. Medial (towards the midline) and lateral (away from the midline):

These are opposites and refer to the sides of the body. The side of the body that is closer to the midline is the medial side, whereas the side of the body that is further away from the midline is the lateral side. Proximal (closer to the trunk) and distal (further away from the trunk):

These are opposites and refer to the position of limbs or body parts relative to the trunk. The part of the limb or body that is closer to the trunk is the proximal part, whereas the part of the limb or body that is further away from the trunk is the distal part. Option D is correct.

For more such questions on body structures

https://brainly.com/question/10265675

#SPJ8

How do organisms use the atoms of food molecules?

Answers

Organisms use the atoms of food molecules to build larger organic molecules including proteins, DNA, and fats (lipids) and use the energy in food to power life processes. By breaking the bonds in food molecules, cells release energy to build new compounds.

Which of the following is most likely to happen if a person drinks untreated water from a road side ditch

Answers

Answer:

That person might get  allergies to any mold and pollen that have fallen in the water. The person might contract an upper respiratory tract infection from viruses in the water.

Explanation:

4. Which is a factor that keeps Earth in orbit around
the Sun?
A. the gravitational pull of the Sun
B. the orbital path of the moon
C. the continuous motion of the universe
D. Earth's changing speed and direction

Answers

Answer: A. the gravitational pull of the Sun

The sun is providing a centripetal force pulling the earth inward toward the sun. At the same time, the inertia of the earth is making it want to move forward in a straight line. The two forces work together to create the net effect of the earth orbiting around the sun. Other planets, moons, asteroids, and celestial objects exert gravitational forces on the earth as well, but nowhere near the amount of what the sun does.

I think it’s A because it only makes since

PLEASE ANSWER ASAP!!!

Describe the difference between dominant alleles and recessive alleles.

THANK YOU SO MUCH!!

Answers

Answer:

When an allele is dominant, the characteristic it is connected to will be expressed in an individual. When an allele is recessive, the characteristic it is connected to is less likely to be expressed.

Blood, muscle, and bone cells are examples of _____.
plant cells
specialized cells
organs
tissues

Answers

Answer:

specialized cells

Explanation:

All of those cells are types of specialized cells.  They are cell specifically designed for a specific job.

How can you tell the difference between alternate and opposite leaf arrangements?
They are based on based whether the leaf pinnate or palmate venation.
They are based on based whether the leaf has one or two leaves at the node.
They are based on based whether the leaf has a smooth or toothed margin.
They are based on whether the leaf is simple or compound.

Answers

Answer:

They are based on based whether the leaf has one or two leaves at the node.

Explanation:

Answer: They are based on based whether the leaf has one or two leaves at the node.

Explanation: You can tell the difference between alternate and opposite leaf arrangements based on whether the leaf has one or two leaves at the node. Alternate leaf arrangement is when a single leaf is attached at one location on the stem, the node, in an alternating pattern.  On the other hand, the opposite leaf arrangement is when two leaves are attached to the same node on opposite sides of the stem.  

which of these is not recycled through earths ecosystem
energy
carbon
nitrogen
water

Answers

Answer:

energy

Explanation:

energy is the answer

in unicellular organisms, what makes up the organism

Answers

Answer:

Unicellular organisms include bacteria, protists, and yeast.

Explanation:

{ pls help me brainiest }

Which type of sensory receptors monitor position and movement of the body?

A. Photoreceptors
B. Chemoreceptors
C. Proprioceptors
D. Exteroceptors

Answers

Answer:

C. Proprioceptors

Explanation:

Firstly option A. Photoreceptors - Is responsible for our vision and is a subcategory for option D. Exteroceptors.

External receptors that respond to stimuli from outside the body are called exteroceptors.

Option C. is the correct answer because Proprioceptors is the sense of self-movement and body position. It sometimes may also be referred to as our sixth sense.

Hope this Helps :)

Other Questions
A student cycles a distance of 63 km in lessthan 3 hours. What is the average speed? A number t increased by seventy what mean and explain that line:. don't let your generation die!.... Which statement does NOT describe external regulatory proteins?1 They respond to events occurring inside a cell.2. Growth factors are one group of external regulatory proteins.3. They can speed up or slow down the cell cycle.4. Some can cause cells to slow down or stop their cell cycles. jumping on a cemented floor is more pain full than a sandy flour,why Which question should you ask to find out the length of a planet's year? QuestionWhich of the following statements are TRUE? (Choose 5.)Humans have increased their carrying capacity through advances in technology, urbanization, and the use ofthe planet's resources.D Scientists use models of a population to predict population growth,The impact of rapid growth of human population is a source of environmental problems.Human activities and population growth threaten biodiversity in almost every part of our planet.Human activities and population growth do not threaten biodiversity in civilized regions on Earth.Earth's human population is decreasing every day,Earth's human population is growing exponentially Boron has two isotopes. Boron-10 which has a mass of 10.0129 and Boran-11 with a mass of 11.0093 occurs 52.69% of the time and B - 11 47.31% of the time. What is the average atomic mass of boron?Help me When did Robert Hooke develop his microscopes? I need help ASAP Choose the following equations that are TRUE:A 4+4+4= 3 x 4B 4-3 = -43C (43)* = 412D 4 (44) = 47E 4 = 01(43= 4-3G 4 x 4 x 4 = 42 True or False? Special Interest groups have no bias.you will be marked BRIANLIEST if u answer in the next 15 minutes :) Beth describes her current location: "I'm directly south of the theater, halfway to the restaurant." Plot the point representing Beth's location. Which of these wonders was located the farthest west? Which wonder was located about nine hundred miles from Alexandria? What is the equation of the graphed line written in standard form? How far from the door must a ramp begin in order to rise 3 feet with an 8 degree angle of elevation Emily is creating a checklist on avoiding chemical contamination of food for her catering staff. Which two points should she include on the checklist?1.Make sure to wash hands with warm water before preparing food.2. Do not spray sanitizers in the kitchen when food is being prepared.3. Do not prepare food without wearing hair nets.4.Do not store cleaning liquids near food prep areas.5. Discard food if you find any foreign objects in it while prepping. 30 points!!!!!!!!!(Except from the adventures of huckleberry Finn)4. PART B: Which of the following quotes best supports theanswer to Part A?A.Now, we'll start this band of robbers and call it TomSawyer's Gang." ( Paragraph 3)B.And if anybody that belonged to the band told thesecrets, he must have his throat cut, and then have hiscarcass burnt up and the ashes scattered all around,and his name blotted off of the list with blood andnever mentioned again by the gang ( Paragraph 4)C.They talked it over, and they was going to rule meout, because they said every boy must have a familyor somebody to kill, or else it wouldn't be fair andsquare for the others." ( Paragraph 10)D.Then they all stuck a pin in their fingers to get bloodto sign with, and I made my mark on the paper."(Paragraph 12) Anybody play grounded? I need somebody to play with pneumatic bones of a. increase the respiratory rateb. increase the buoyancy NEED ASAPSelect the THREE expressions that are equivalent to -2(4 3x) + (5x 2).A) 2x 10B) 11x 10C) -8 + 11x 2D) -8 11x 2E) -8 + 6x + 5x 2F) -8 3x + 5x 2