a researcher has 15 pure bred wild mice which were bron and all were females. they were all mated with a male called Bob.All the offspring were brown/ these were then crossed among themselves with the the following results 293 brown and 115 white. determine the color of bob

Answers

Answer 1

Answer:

1. Brown.

2. Brown colour is dominant.

3. 2.5 : 1

Explanation:

The colour of Bob is brown because the offspring produced from mating are also brown. The dominant colour in these mice are brown due to presence of this brown colour in all mice. We know that dominant traits always appear in the form and structure of an organisms and we see all mice have brown colour so we can say that the dominant colour is brown. The ratio of brown to white in the 'grandchildren' are 2.5 : 1 means more mice has brown colour as compared to white.


Related Questions

A piece of equipment that records earthquake

Answers

Explanation:

seismometer .

Hope this will help you.

Answer:

seismograph

A seismograph, or seismometer, is an instrument used to detect and record earthquakes. Generally, it consists of a mass attached to a fixed base. During an earthquake, the base moves and the mass does not.

hope it helps!

what is the importance of enzymes in chemical digestion?​

Answers

Answer:

Enzymes break down chemical bonds that hold food together.

Describe and explain how blood in the right ventricle travels to the left atrium


pls give me a awnser even if it’s just a sentence

Answers

Explanation:

Deoxygenated blood enters the right atrium passes through the right ventricle and then goes the lungs through the pulmonary artery.

It becomes oxygenated and enters the left atrium through the pulmonary vein

When the right ventricle contracts, blood is forced through the pulmonary semilunar valve into the pulmonary artery. Then it travels to the lungs. In the lungs, the blood receives oxygen then leaves through the pulmonary veins. It returns to the heart and enters the left atrium.

What number represents a Ribosome? What is the function

Answers

Answer:

A ribosome is a complex molecular machine found inside the living cells that produce proteins from amino acids during the process called protein synthesis or translation. The process of protein synthesis is a primary function, which is performed by all living cells. Ribosomes are specialised cell organelles and found in both prokaryotic and eukaryotic cells. Every living cell requires ribosomes for the production of proteins

Explanation:

All organisms have names that
include
class and order
Family and location
order and family
genus and species

Answers

Genus and species . They said my answer needs at least 20 letters so, this should be it we just started learning it

List 2 examples of a human's first line of defense:

Answers

Answer:

The first line of defence (or outside defence system) includes physical and chemical barriers that are always ready and prepared to defend the body from infection. These include your skin, tears, mucus, cilia, stomach acid, urine flow, 'friendly' bacteria and white blood cells called neutrophils.

[GIVING BRAINIEST]
Ribosomes are found mostly in cells
that...
A. produce proteins.
B. produce energy.
C. are involved in reproduction.

Answers

Answer:

produce proteins (A) .......

Compared to the distances between the planets of our solar system, the distances between stars are usually
A) much greater
B) much less
C about the same

Answers

Answer:

the distances are much greater

Explanation:

because stars have their own light and energy so they dont need to orbit planets or other stars.Planets dont have their own light so they need to orbit a star and a star is usually orbited by multiple planets (sorry for my bad english)

What is a real world example of enzymes being used?​

Answers

Answer:

Enzymes are used in the food, agricultural, cosmetic, and pharmaceutical industries to control and speed up reactions in order to quickly and accurately obtain a valuable final product. Enzymes are crucial to making cheese, brewing beer, baking bread, extracting fruit juice, tanning leather, and much more.

Explanation:

yessir

What are the effects of television viewing on children?
A. It clearly has positive effects on impulse control.
B. It causes children to be more restless.
C. It stifles the imagination.
D. It depends upon what shows are being watched.

Answers

Answer:the answer is d

Explanation:because it Literally depends on what you let your kid watch it can cause positive and negative effects in him/her

-If you can please awsner both parts of the question in complete sentences!!

-Thank you for the help I really do appreciate it!♡!​​

Answers

1.) the most closely related above are the dolphin and the fish. this is because they are in the same kingdom, phylum, class, order, and family. because the specific names of the organisms are not listed, that is as specific as i can get.

2.) the wolf is the least related to all of the rest of them because it is in a different class. class- mammal, bird, fish, insect, reptile, amphibian, etc.

2
What does the author describe in the passage?
A
the history of the Hoover Dam and its impachon the Southwest region
B
the development of different types of hydropower
C the political environment in America during the construction of the Hoover
Dam
improvements in irrigation along the Colorado River before the Hoover
Dam was built

Answers

Answer: A . the history of the Hoover Dam and its impact on the Southwest region.

Explanation:

This question is based on the article, ''The Hoover Dam'' by Michael Stahl. In it the author begins by describing what hydroelectricity is and how it came about.

The author then used the Hoover Dam to illustrate the points made about hydroelectricity by first giving a brief history of the construction of the dam and the sacrifices it took to build it. The impact the dam had on the area it supplies - the Southwest - was also analysed.

Wilma is preparing to perform a physical examination of a dog. She wants to check the dog’s liver for abnormalities. Complete the sentence to help Wilma understand how she can do this procedure.

In a physical examination, you can perform *BLANK* palpation on the dog to check the dog’s liver.

Answers

Answer: thyroid palpitation

Original DNA → T A C C A T G G A A C A A G T

Answers

Answer:

what do you mean

Explanation:

HELP ME ASAP



read the article above and answer the questions below :



1. The part of digestive system that breaks down food with acid is the

A. Teeth

B. Stomach

C. Small intestine

D. Rectum



2. The part of the digestive system where the nutrients in food are absorbed is the

A. Teeth

B. Stomach

C. Small intestine

D. Rectum



3. The processed food that the stomach sends to the intestines is called

A. Chyme

B. Duodenum

C. Both a. and b. above

D. None of the above

Answers

1. B Stomach
2.C Small Intestine
3.A Chyme

QUESTION 1
How many pairs of ribs are in the human body?
O 6 pairs
O 12 pairs
O 9 pairs
O 16 pairs
QUESTION 2
Which facial bone forms the chin?
O The Mandible bone
O The Mandible & Maxillae bone
The Maxillae bone
O The Mandible, Maxillae & Zygomatic bone

Answers

Answer:

12 pairs

mandible

Explanation:

12, eiether your a adult or kid.

Can you plz help me I don’t get it

Answers

Answer:

Plant cells have a cell wall, chloroplasts, plasmodesmata, and plastids used for storage, and a large central vacuole, whereas animal cells do not.

Explanation:

Which organism is the secondary consumer in this food chain? Aspen gene Rabbit Snake Hawk
A. Rabbit
B. Aspe
C. Hawk VO
D. SNAKE

' .

Answers

Answer:

I think its snake

Explanation:

Which statement explains why the structure of sickle cells differs from normal red blood cells?

A
The gene mutation affects protein synthesis.

B
The gene mutation prohibits DNA replication.

C
The gene mutation inhibits the cell’s ability to produce tRNA.

D
The gene mutation affects the cell’s ability to produce ATP.

Answers

Answer:

a

Explanation:

The structure of sickle cells differs from normal RBCs because of the gene mutation that affect the protein structure.

Sickle Cells:

These cells look like a crescent moon. They are unable to transport oxygen. This cause anemia in the patient.

It is an inherited disorder in which point mutation in the lead to the different protein structure. This results in the sickled RBCs.

Normal blood cells are round in shape and able to transport oxygen.

Therefore, the structure of sickle cells differs from normal RBCs because of the gene mutation that affect the protein structure.

To know more about Sickle Cells,

https://brainly.com/question/3895081

Describe how the mutation has effected the protein coded by this gene?

Answers

Answer:

By changing a gene's instructions for making a protein, a mutation can cause the protein to malfunction or to be missing entirely. When a mutation alters a protein that plays a critical role in the body, it can disrupt normal development or cause a medical condition.

Please help!

Youngest:
E
I
D
H
B
F
A
C
Oldest

Question: List the principles you used to determine the age relationships:



Answers

Answer:

Crosscutting, Superposition, Original Horizontality

Explanation:

Superposition means that the layer of rocks that was deposited first must be on the bottom unless overturned by some geologic even later on. In this case, that allows us to confirm that D is younger than H because D was deposited on top of H.

Crosscutting is also used, which is where you see your faults. Think logically: for something to cut across a layer of rock, the layer of rock must exist to be cut across. This principle makes letter B younger than letters C, A, and F, but older than H, as B does not cross cut H.

Original Horizontality is also used. This simply means that when a layer of rocks is deposited it is deposited roughly horizontally. This in essence is saying for example, that layer C was originally deposited completely flat, like a brick. Then, letter B came along later and cracked the brick in half, then pushed one half of the brick up, making the brick (layer of rock) uneven.

Make sense enough?

PLEASE HELP IM GIVING 30 POINTS AND BRAINLIEST!!!!!! PLEASE ​

Answers

Answer:

a. uterus

b.ambiotic fluid

c.fetus

d.placenta

e.ambilical cord

f. cervix

i really hope this helps

Hoof type in pigs is determined by a gene with the dominant allele (H) resulting in a fused hoof while the recessive allele (h) gives rise to a cloven hoof. The color pattern of the animal’s coat is determined by a dominant allele (B) that results in a belted pattern or a recessive allele (b) that leads to a solid color. Give the possible genotypes and phenotypes of the progeny resulting from crossing a HhBB male with a HhBb female.

In pole beans, the color of the bean is controlled by a gene with the dominant Red (R) allele and pale-green (r) allele is recessive. The mode of growth, either climbing or bush is controlled by another gene on another set of homologous chromosomes. The climbing (B) mode of growth is dominant over bush (b). A red bush plant was crossed with a pale-green climbing plant. Of the offspring there were approximately equal numbers of red, climbing; red, bush; pale-green, climbing; and pale-green bush. Give the genotypes of the parents and offspring.

Answers

Answer:

Problem 1: Give the possible genotypes and phenotypes of the progeny

F1) Genotypes:

    2/16 = 1/8 of the progeny will be HHBB     2/16 = 1/8 of the progeny will be HHBb     2/16 = 1/8 of the progeny will be HhBB     2/16 = 1/8 of the progeny will be HhBb     2/16 = 1/8 of the progeny will be HhBB     2/16 = 1/8 of the progeny will be HhBb     2/16 = 1/8 of the progeny will be hhBB     2/16 = 1/8 of the progeny will be hhBb

    Phenotypes:

12/16 = 3/4 of the progeny will be fuse-hoofed and belt-colored, H-B-4/16 = 1/4 of the progeny will be cloven-hoofed and belt-colored, hhB-

Problem 2: Give the genotypes of the parents and offspring.

red bush plant:  Rr bb   pale-green climbing plant: rr Bb

Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files

How could cell growth create a problem that is similar to a traffic jam?

Answers

Answer: IM SO SORRY if wrong

Explanation:

If a cell got too large, it would be more difficult to get sufficient amounts of oxygen and nutrients in and waste products out.  Chromosomes make it possible to separate DNA precisely during cell division.

hope it helps

What are the 3 difference between DNA and RNA

Answers

Answer:

DNA contains the sugar deoxyribose, while RNA contains the sugar ribose. DNA is a double-stranded molecule, while RNA is a single-stranded molecule. DNA is stable under alkaline conditions, while RNA is not stable. DNA and RNA perform different functions in humans.

Answer:

DNA:

A pairs with T, Its a double helix, and it has sugar deoxyribose

RNA: U pairs with T, single stranded, and is has sugar ribose

Hope this helps :)


Given the DNA template strand below type the complementary mRNA that would be made during transcription.
TATAGCGTACGGCTAT

Answers

Answer:

AUAUCGCAUGCCGAUA

Explanation:

MULTIPLE CHOICE QUESTION

Shivering helps maintain our bodies
homeostasis by increasing the body's


glucose level

temperature

fat cells

surface area

Answers

Answer:

Temperature is the correct answer

NEED HELP!!! WILL GIVE BRAINLIEST!! <3

Answers

Answer:

pollution

Explanation:

i guess I can only think of one

During protein synthesis, what does mRNA do?
A It strings together two complements RNA strands
B It constructs proteins out of random amino acids
It strings together two complementary DNA strands
D It delivers DNA's instructions for making proteins to the ribosome

Answers

Answer:

No direct answer but this might help out a little bit: <3

Explanation:

The mRNA is an RNA version of the gene that leaves the cell nucleus and moves to the cytoplasm where proteins are made. During protein synthesis, an organelle called a ribosome moves along the mRNA, reads its base sequence, and uses the genetic code to translate each three-base triplet, or codon, into its corresponding amino acid.

Answer:

D It delivers DNA's instructions for making proteins to the ribosome

Explanation:

The brain is a delicate organ but it is protected by _____ and _____ (citation required). The brain is organized into four regions: _____, _____, _____, and _____ (citation required). The hindbrain and the brainstem _____ (citation required). The midbrain _____ (citation required). The forebrain includes the hypothalamus, the thalamus, the pineal body, and the cerebrum. The cerebrum is divided into four distinct lobes and two hemispheres. Of these, the frontal lobe is responsible for _____ functions, the parietal lobe is responsible for _____ functions, the temporal lobe is responsible for _____ functions, and the occipital lobe is responsible for _____ functions (citation required). Distinct from the spinal cord, the brain is serviced by __ pairs of nerves that include the optic nerve and the nerves responsible for tongue movement and hearing and balance (citation required).

Answers

Answer:

Find answers below.

Explanation:

The brain is a delicate organ but it is protected by cranium and meninges. The brain is organized into four regions: Hindbrain, Forebrain, Midbrain and Brainstem. The hindbrain and the brainstem includes the brain and spinal cord. The midbrain is the third part of the brain stem, and serves to relay sensory and motor information between the spinal cord and the rest of the brain. The forebrain includes the hypothalamus, the thalamus, the pineal body, and the cerebrum. The cerebrum is divided into four distinct lobes and two hemispheres. Of these, the frontal lobe is responsible for cognitive functions, the parietal lobe is responsible for sensory functions, the temporal lobe is responsible for auditory (language and memory) functions, and the occipital lobe is responsible for visual functions. Distinct from the spinal cord, the brain is serviced by 12 pairs of nerves that include the optic nerve and the nerves responsible for tongue movement and hearing and balance.

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