If two individuals were heterozygous for freckles, which are a dominant autosomal trait, what percentage of their offspring would you expect to have freckles

Answers

Answer 1

Answer:

75%

Explanation:

Firstly, an autosomal dominant trait is a trait the becomes expressed in the presence of only one affected allele, which is the dominant allele. Freckles is said to be an autosomal dominant trait meaning that the presence of the dominant allele (F) makes a person have the condition.

According to this question, If two individuals that are heterozygous for freckles cross i.e. Ff × Ff, the following proportion of offsprings will be produced: FF, Ff, Ff and ff (see punnet square).

From the genotypic observation of the produced offsprings:

FF, Ff - possess freckles

ff - do not possess freckles

Since, 3 (FF, Ff and Ff) of 4 offsprings possess freckles, the percentage of offsprings expected to have the condition will be:

3/4 × 100 = 75%


Related Questions

The weirdest laws in the world gets brainliest. Look up the weirdest laws in the world and either post it in the comments or as an answer.

I don't want anything inappropriate or I will report you!

Answers

Answer:

Parliaments famous Salmon Act of 1986 states that it's illegal to hold salmon under suspicious circumstances.

Which is not an affect of testosterone in males?
A.Increase muscle mass
B.Change the voice to a higher pitch
C.The thickness and distribution of hair follicles on the body and head
D.Sperm production

Answers

Answer:

the answer is c

Explanation:

not much else to explain

The Answer is c hope it helps

Write two sentences or clues, one for each word, that will help you remember the difference between actin and myosin. (Example: Actin is actively pulled)?

Answers

Answer:

The correct answer is -

Actin produces thin contractile filaments within muscle cells,

Myosin produces the dense contractile filaments within muscle cells

Explanation:

Actin is a globular protein that makes actin filaments by arranging in the long spiral chain or produces thin contractile filaments within muscle cells. It is found in cell cytoplasm as well as in the nucleus in eukaryotic cells.

Myosin is a motor protein that produces the dense contractile filaments within muscle cells and plays role in generating movement and force from chemical energy.

what are the waste products of the kidneys​

Answers

Answer:

your answer is correct. it is option 3

The kidneys remove waste products called urea from the blood through tiny filtering units called nephrons.

How is a virus different from a bacterium?
A. A virus causes illness, but a bacterium does not.
B. A bacterium is a living cell, but a virus is not.
C. A virus is a living cell, but a bacterium is not.
D. A bacterium causes illness, but a virus does not.

Answers

Answer:

option B

Explanation:

On a biological level, the main difference is that bacteria are free-living cells that can live inside or outside a body, while viruses are a non-living collection of molecules that need a host to survive.

do consider marking as Brainliest if this helps!!

The answer is b a bacterium is a living cell but a virus is not

A species of fly has two alleles for the length of their legs.The allele for short legs is recessive, and is represented by q. If 21 of 100 organisms have short legs what is p

Answers

Answer:

0.49

Explanation:

just because

True or false? One theory about phototropism is that auxin triggers a reaction on the shaded side of the stem that causes cell elongation on that side of the plant.
Group of answer choices

True

False

Answers

Answer:

one theory about phototropism is that auxin triggers a reaction on the state side of the steam ***** false

One theory about phototropism is true

Protein digestion begins in the ________; fat digestion begins in the ________. Stomach; small intestine Mouth; stomach Esophagus; stomach Small intestine; small intestine Small intestine; large intestine

Answers

Answer:

Protein digestion begins in the mouth

Fat digestion begins in the stomach

Once a protein supply reaches your stomach, hydrochloric acid and enzymes referred to as proteases spoil it down into smaller chains of amino acids. Amino acids are joined collectively through peptides, that are damaged through proteases.

Fat digestion starts offevolved withinside the stomach. Some of the byproducts of fats digestion may be immediately absorbed withinside the stomach. When the fats enters the small intestine, the gallbladder and pancreas secrete materials to in addition spoil down the fats.

What is digestion?

The approaches of digestion encompass six activities: ingestion, propulsion, mechanical or bodily digestion, chemical digestion, absorption, and defecation. The first of those approaches, ingestion, refers back to the access of meals into the alimentary canal thru the mouth.

Thus it is well explained.

To know more about the Esophagus refer to link :

https://brainly.com/question/1284374

During pulmonary ventilation, relaxation of the diaphragm and external intercostals ________ and air flows out of the lungs. increases the pressure in the thoracic cavity flattens the floor of the thoracic cavity increases the volume of the thoracic cavity expands the rib cage stimulates the phrenic nerve

Answers

Answer:

Increases the pressure in the thoracic cavity

Explanation:

During pulmonary ventilation, relaxation of the diaphragm and external intercostals increases the pressure in the thoracic cavity and air flows out of the lungs.

Pulmonary ventilation involves the exchange of air in the body. The exchange mainly takes place between the lungs and the the blood. When the lungs take in oxygen it distributes it to other parts of the body after which the byproduct is expelled in the form of Carbon dioxide.

The diaphragm and intercostal muscles are found close to the chest(thoracic) region such that when air is expelled it produces a similar effect such as relaxation of the diaphragm which also makes the chest muscles go down and exert pressure. This mechanism aids the expulsion of Carbon dioxide from the lungs.

Discuss the impact of development planning for economic development for a development country like Pakistan under what circumstances a country should go for short term medium term and long term plan (it is a economics question)

Answers

Answer:

Great impact.

Explanation:

There is a great impact of development planning for economic development for a country because this development planning is important for the growth of economy of the country. Without planning, goals of better economy can not be accomplished. A country should go for short term plan in order to solve the economic problem at that time while on the other hand, medium and long term plan is used by the country in order to solve the economic problem completely.

Inhalation and exhalation move air into and out of the lungs. What happens when you inhale and exhale

Answers

When you inhale (breathe in), air enters your lungs and oxygen from the air moves from your lungs to your blood. At the same time, carbon dioxide, a waste gas, moves from your blood to the lungs and is exhaled (breathe out). Hope this helps

True or false: Drug resistance only arises from an organism gaining the genetic information for the resistance from another organism.

Answers

Drug resistance only arises from an organism gaining the genetic information for the resistance from another organism.

Answer: True

The BRCA-1 genes in humans encode proteins that have role in maintaining DNA stability. Mutation in this gene results in formation of non-functional protein, which is not able to repair damaged DNA, resulting in a significantly increased risk of breast cancer. BRCA-1 is a/an: Group of answer choices Proto-oncogene Homeotic gene Oncogene Tumor suppressor gene

Answers

Answer:

tumor suppressor gene

Explanation:

A tumor suppressor gene is capable of modulating cellular processes during cell division and/or replication, thereby avoiding uncontrolled cell proliferation and tumor development. For example, the p53 gene is a tumor suppressor gene that encodes a protein (p53) which is well known to regulate critical cellular processes such as, for example, cell cycle arrest and programmed cell death (apoptosis). Moreover, breast cancer genes BRCA1 and BRCA2 are tumor suppressor genes that regulate the repair of damaged DNA through the Homologous recombination (HR) pathway. In consequence, mutations in BRCA1 and BRCA2 genes can increase the risk of developing breast cancer.

Are there any parts of the human body that get oxygen directly from the air and not from the blood?
A. Yes
B. No
C. Neither​

Answers

Answer:

yes

Explanation:

your lungs

Answer:

Yes because the cornea in your eye takes oxygen directly from the air, not from your blood.

Select all that apply.

All cells have similar structures, including _____.

a plasma membrane
vacuoles
protoplasm
chloroplasts
cell wall
cytoplasm

Answers

All cells have similar structures, including

plasma membraneprotoplasmcytoplasm

A student combined equal amounts of two solutions. One solution had a pH of 2 and the other had a pH of 12. Which would most likely be the resulting pH?

Answers

Answer:

This question lacks options, the options are:

A. 1

B. 3

C. 6

D. 11

The answer is C. 6

Explanation:

pH of a solution refers to the concentration of hydrogen ions in that solution. A scale is used to measure pH of a solution.

* A pH value less than (<) 7 is said to be ACIDIC. The lesser the number, the more acidic

* A pH value of exactly 7 is said to be NEUTRAL

* A pH value above (>) 7 is said to be BASIC OR ALKALINE. The higher the number, the more alkaline.

According to this question, two solutions of equal volume with pH values of 2 and 12 respectively were combined. Based on the explanation of pH scale, the solution with pH 2 is said to be very ACIDIC while the solution with pH 12 is said to be very ALKALINE.

Hence, if this two solutions are combined, a neutralization will occur which will result to a solution with close to neutral pH (7). In the above options, 6 is the closest pH value to NEUTRAL and hence, the most likely pH of the resulting solution.

Answer:

6

Explanation:

edge 2022

tRNA Molecules
Cytoplasm
Leu
Ser
Leu
car
Ser
Pro
Arg
Tyr
Glu
Gly
GAC
AGG
G A G
AGA
G GA
UCU
GUA
с и с
CC G
Anticodons
Met-Lys
H20 Counter
1
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Codons
GA A GGG CCA ACGACUUU AUCGG
mRNA
5'
Ribosome
3'
Continue to build the protein by joining amino acids to the chain in the correct order. Every amino acid
joined to the protein results in the production of one more water molecule. Click "Dehydrate" to form the
peptide bonds and watch the water molecule counter and be sure to record all data in your data table.
1) Intro

Answers

Answer:

What are you even listing!

What can our nerves respond to? ​

Answers

They can respond to external stimuli

Assuming a normal individual weighs 110 pounds. What is the amount of water needed daily to remain hydrated according to the lecture?

A) 25 ounces
B) 35 ounces
C) 45 ounces
D) 55 ounces

Answers

Answer:

D

Explanation:

The intake of someone of the that weight should be 73 ounces you haven't given me any form of formula so I went with the highest.

What do you think are the possible alleles for eye color in humans?

Answers

Answer:

I'm not sure but i think its brown and blue

What was the goal of "victory gardens"

Answers

Answer: During World War II, Victory Gardens were planted by families in the United States (the Home Front) to help prevent a food shortage. This meant food for everyone. Planting Victory Gardens helped make sure that there was enough food for our soldiers fighting around the world.

New fossil primates are recovered in a stratigraphic layer of volcanic ash that includes fossil molars of a pig species known to have become extinct about 30 million years ago. Identify the fossil dating methods that are appropriate to use in determining the age of the fossil primates. Correct Dating Methods inquizitive

Answers

Answer:

The correct dating methods will be:

radiopotassium datingbiostratigraphic dating

Explanation:

The primate fossils presented in the question above must be submitted to the dating processes known as radiopotassium and biostratigraphic so that the age of these fossils can be determined as accurately as possible.

Radiopotassium dating is based on the half-life of potassium, which is equal to 40 years. The term half-life refers to the number of years it takes for half the number of atoms of the radioactive isotope to be destroyed. Thus, radiopotassium dating measures the amount of potassium present in a fossil and relates this amount to the half-life of potassium, thus being able to calculate the age of the fossil.

Biostratigraphic dating, on the other hand, allows the age of a fossil to be determined by being compared with the age of another fossil and the physical and structural composition that these fossils have.

Therefore, to determine the age of primate fossils, radiopotassium dating would first be used in some fossils. These would be used as a model during biostratigraphic dating, allowing confirmation of the age of other fossils.

Name the 3 systems make a
nervous system of rabbit.​

Answers

1. The central nervous system including brain and spinal cord.

2. The peripheral nervous system including nerves coming out from the brain and spinal cord, i.e., cranial nerves and spinal nerves.

3. The autonomic nervous system including sympathetic nervous system and parasympathetic nervous system.

Answer:

The nervous system of rabbit consists of three divisions:

1. The central nervous system including brain and spinal cord. 2. The peripheral nervous system including nerves coming out from the brain and spinal cord, i.e., cranial nerves and spinal nerves.

Explanation:

please answer this:)​

Answers

May to October octuder to Dedembera

Autoclaving is the most effective among all moist heat-related antimicrobial methods. (True or False)

Answers

Answer:

True.

Explanation:

Autoclaving is the most effective among all moist heat-related antimicrobial methods because this method can kill all the harmful microbes such as bacteria, fungi and viruses. Moist heat causes destruction of microorganisms by denaturation of macromolecules that is present in their body such as proteins. Autoclaving is a very common method for moist sterilization. It is an effective method in killing fungi, bacteria, spores, and viruses but it does not eliminate prions.

Why do you think gene therapy is such a promising field for this disease?

Answers

Answer:

Gene therapy replaces a faulty gene or adds a new gene in an attempt to cure disease or improve your body's ability to fight disease. Gene therapy holds promise for treating a wide range of diseases, such as cancer, cystic fibrosis, heart disease, diabetes, hemophilia and AIDS.

Which weathering process involves physical forces but not chemical
reactions or dissolving of minerals?

Answers

Answer:

Mechanical weathering, also called physical weathering, breaks rock into smaller pieces. These smaller pieces are just like the bigger rock, just smaller. That means the rock has changed physically without changing its composition.

Explanation:

GIVE BRAINLIST

To provide energy for the work that cells do, all cells need____

Answers

all living cells need oxygen

What type of microscope most likely produced the image of a mitochondrion?

Answers

Answer:

Mitochondria are visible under the light microscope although little detail can be seen. Transmission electron microscopy (left) shows the complex internal membrane structure of mitochondria, and electron tomography (right) gives a three-dimensional view.

Explanation:

write an account of the different methods of protecting endangered species of animals and plants around the world. include the use of legalisation in your answer 6
QER

Answers

Answer:

Provide suitable place, making laws and reduce pollution.

Explanation:

Provide suitable place where they can breed without disturbance, making laws to forbit hunting of endangered species and reduce pollution are the different methods that can protect endangered species of animals and plants around the world. For increase in population, suitable environment is required so that they have no predators or other factor that adversely affect their growth. The laws to forbit hunting or killing has also a significant effect on endangered species. Pollution is the main reason for change in the environment that make the environment not suitable for animals and plants.

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