Consider that a certain gene is a maternal effect gene and that the allele for dark brown pigment is incompletely dominant to the allele for no pigment (white). The incomplete dominant phenotype is light tan. If a white female is crossed with dark brown male, what will be the phenotypic ratio of the progeny?
A) all white
B) all dark brown
C) all light tan
D) either all white or all light tan
E) either all light tan or all dark brown
F) none of the above choices (cannot be determined)

Answer:

C. Plasma

Explanation:

Blood consists of a fluid medium called Plasma.

Answer:

No its not

Explanation:

Hey there!

Conjoined fish is a very rare occurrence that does not happen often.

Hope this helps :)

Answer:

Yes that is correct

Explanation:

Answer:

food space and water

Explanation:

Answer:

b) the plastic bag was permeable to iodine

the plastic bag was selectively permeable

the iodine moved into the plastic bag.

the plastic bag was permeable to cornstarch.

Explanation:

The experimental set up represented the concept of osmosis.That is  the movement of water  molecules from the region of higher  water potential to region of lower water potential through a semipermeable membrane(a  cell membrane which only allows water and certain molecules to pass through,but restrain other molecules through its pores.

Generally potassium iodine test is the standard test for starch.

Therefore, in the question,water moves iodine molecules as iodine solution(from high water potential) to move across the paper bag(semi permeable membrane) to the reach the corn solution.(low water potential,high solute potential).This turns the starch in the corn solution  blue-black/purple.

If the solution in the plastic bag turned dark purple:

To test for the presence of starch in a solution, iodine solution is used. This gives a blue-black coloration which occurred due to the formation of a starch-iodine complex.

From the above experiment, the plastic bag which contains the corn starch solution, separates the solution from water containing 10 drops of iodine.

The turning of the solution, inside the plastic bag, into blue black signifies the formation of starch-iodine complex between the cornstarch solution the iodine water.

The reaction was able to occur because the plastic bag, which is selectively permeable to iodine, allowed the movement of iodine from the beaker of water into it. This is called diffusion.

Therefore, if the solution in the plastic bag turned dark purple it means that the plastic bag which is semi permeable allowed the movement of iodine into it.

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Answer:

2,500

Explanation:

Answer:

the answer is 2,500x

Answer:

option 1 is correct

Explanation:

the ability of substance to conduct heat and electricity depends upon the number of free electron since copper is transition metal it has a loosely held electron in their outer shell that is able to move freely to other atoms because of these free electron copper is a good conductor of electricity

Answer:

None

Explanation:

This is because A and B are dominant over O. Hence the overshadow the O group in the phenotype.

Answer:

a u g g u a u a a c u c

Explanation:

i think this is it, but there is no explanation of what to do

Answer:

Phosphorus group, a sugar(like deoxyribose or ribose), and a nitrogenous base

Answer:

False

Explanation:

The correct answer is false because Reabsorption of water and other filtered solutes like vitamins, sodium e.t.c. take place in the proximal convoluted tubules.

Reabsorption is when water and solutes in the PCT are removed and moved back into the blood and it's a process that take place through bulk transport.

The solutes and water are transported from the PCT to the interstitium and then move into peri-tubular capillaries and reabsorption in PCT is isosmotic i.e solutes have the same osmotic pressure.

Answer:

Corn

Explanation:

Answer:

3.page is this that answer

Explanation:

a.1,2,3,4

The correct sequence for western blotting is: C. 1,3,2,4

Blotting can be defined as an analytical technique that is designed for the analysis of biological macromolecules such as:

For western blotting, the correct sequence of analyzing biological macromolecules such as proteins is:

1. The denaturation of protein through the use of sodium dodecyl sulfate (SDS) and by boiling.

2. The performance of polyacrylamide gel electrophoresis (PAGE).

2.The transfer of proteins to the nitrocellulose membrane.

4. Lastly, the incubation of the nitrocellulose membrane to subsequently form primary antibodies and secondary antibodies.

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Answer:

The correct answer is - option a. root cap.

Explanation:

Roots of the plants are developed from the structure called radical in seed during germination of seed.The tip of the root is tender due to the present of the apical meristem that is the precursor of the new cells of the root and protected by the root cap and penetrate in to the soil with the help of mucigel. Mucigel is the which protects the extending roots from developing friction.

Thus, the correct answer is : option a. root cap.

Answer:

The answer is ROOT CAP

Explanation:

Got it right on my test.

Answer:

Explanation:

hope this will help :)

Answer:

I would have to say D but I might be wrong.

Explanation:

Answer:

yes they very much are!!!!!!!!!

Answer:

2,500x

Explanation:

am doing the review rn

Answer:

1,000x

Explanation:

i got yall

Answer:

Panda and polar bear have some similar characteristics but they also have differences in their behaviors such as polar bears have high daily energy expenditure and are very active while pandas are not.

The panda and polar bear so different because of the geographical difference where they live.

Polar bears are marine mammals and live in north pole perform swimming in north oceans and also move on ice flows, where they catch seals for survival, it makes them active and energetic.

While Pandas are found in China bamboo forests and are herbivores. They eat leaves from bamboo trees, for which they do not require to be more active and get their food easily. So, Pandas are not active as polar bears.

As the climate of North pole and China is cold, both polar bear and panda have very good insulation

Answer:

Outside of the body, nares, vestibule, nasal cavity, choanae, nasopharynx, oropharynx, laryngopharynx, and larynx.

Explanation:

During inspiration, the air enters through the nares in the nose.  From here, it goes up passing through the vestibule, the nasal cavity, and the choanae to start descending through the pharynx. The pharynx has three parts: the nasopharynx, which is in contact with the nose; the oropharynx that is in contact with the mouth; and the laryngopharynx, which is in contact with the larynx and esophagus. Between the oropharynx and laryngopharynx is the epiglottis, this is cartilage that prevents food from going to the lungs when we swallow food. After passing through the pharynx, the air flows through the larynx. From here, the air goes to the trachea, the bronchi, which enters the lungs giving the bronchioles, and these divide giving the alveolus, which is the place where the exchange of Oxygen and Carbon dioxide occurs.              

Placing the respiratory structures in the correct order :

Outside of  Body --> nares --> vestibule --> nasal cavity --> choanae --> nasopharynx --> oropharynx -->  laryngopharynx --> larynx -- > inside of body

During respiration the air enters from outside of the body into the body through the nares down to the vestibule, the nasal cavity which will descend down through to the pharynx which is further divided into three ( 3 ) parts which are; nasopharynx,  oropharynx, and laryngopharynx. The epiglottis is located between oropharynx and laryngopharynx.

Hence we can conclude that Placing the respiratory structures in the correct order ; Outside of  Body --> nares --> vestibule --> nasal cavity --> choanae --> nasopharynx --> oropharynx -->  laryngopharynx --> larynx

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Answer:

Air go from one place to another due to difference in temperature of land and sea.

Explanation:

Air go as a result of wind from one place to another. Air moves from land to sea is called land breeze and from sea to land is known as sea breeze. This will occur when there is difference in temperature between sea and land. Sea breeze occurs at afternoon while land breeze occurs at night till morning. Warm air produces low pressure and cold air produces high pressure so when warm air rises, cold air takes its place and this cycle continues.

Answer:

1.wingless (a segment-polarity gene)

2. hunchback (a gap gene)

3. Kruppel (a gap gene)

4. knirps (a gap gene)

5. hedgehog (a segment-polarity gene)

6. even-skipped (a pair-rule gene)

Explanation:

The gap genes are genes expressed during embryonic development of some arthropods. Loss of function mutations of the gap genes are responsible to produce structural "gaps" in the corresponding region of the embryo. The gap genes are transcription factors that modulate the expression of pair-rule genes, which in turn are required for embryonic development of the alternate segments. On the other hand,  the segment polarity genes are involved in determining the anterior/posterior axis of each segment (the segment polarity network). In the embryo, segment-polarity genes are expressed at specific localizations only after the expression of gap and pair-rule genes.

Answer:

Yes, glucose dissolves in water.

Explanation:

Hello,

In this case, we can state that glucose is largely soluble in water due to the fact that it has five of polar hydroxyl groups which can interact with the hydrogen atoms in the water throughout the hydrogen bonds. Such hydrogen bond is known as an intermolecular force that forms a special type of dipole-dipole attraction when a hydrogen atom bonded to a strongly electronegative atom (like the oxygen in the hydroxyl groups) exists in the vicinity of another electronegative atom with a lone pair of electrons, therefore they occur among molecules.

This question is incomplete because there are no options; here is the complete question:

Bats have oversized ears, which help the bad you sound waves to detect the motion of their prey which example of the characteristics of life is most similar

A) A yeast cell splits itself in half to create a new organism.

B) A rat hides in its hole when it sees an approaching predator.

C) A fungal cell releases carbon dioxide back to the atmosphere.

D) A human child grows taller every year.

The answer to this question is B) A rat hides in its hole when it sees an approaching predator.

Explanation:

One of the characteristics of living organisms is the ability to adapt or respond to the environment. This feature of life is the one shown by bats in this case because the oversized ears are a result of evolution and adaptation that help bats to have more chances of survival. Similarly, rats hiding to avoid predators is a result of adaptation that helps rats survive by avoiding predators. Thus, rats and bat show the same characteristic of life.

Answer:

I. tRNA anticodon bonds to mRNA codon

II. Ribosome bonds to mRNA strand

III. Ribosome reaches a STOP codon and detaches from the mRNA

IV. Each tRNA adds an Amino Acid to the chain as the Ribosome moves along the mRNA

Explanation:

Translation is the second process of gene expression in which a protein molecule is synthesized from the information in a mRNA strand. Translation occurs in the RIBOSOME (an organnelle for protein synthesis made up of ribosomal RNA (rRNA) and proteins). The process of translation occurs in three stages viz: Initiation, Elongation and Termination.

Initiation occurs when the ribosome binds to the mRNA strand in the cytoplasm. The mRNA sequence is then read in a group of three nucleotides called CODON by the ANTICODON of a transfer RNA (tRNA). The basis of reading is the complementary base pairing rule i.e. A-U, G-C. Options I and II describes this stage.

In the elongation stage, the tRNA carries an amino acid corresponding to what it reads in the mRNA codon to the growing polypeptide chain. The amino acids bonds to one another via a peptide bond. As each codon is being read, the mRNA gradually moves over the means sequence. Option IV describes this stage.

Elongation stage continues until any of the stop codons (UAA, UAG, and UGA) are finally encountered by the trans in the ribosome. Since, there are no corresponding anticodons that can read the stop codons, they signal the termination of the translation process. The ribosome then detaches from the mRNA sequence. Option III describes this stage.

Note, option V describes TRANSCRIPTION not TRANSLATION.

Extinction of the Ordovician: This extinction was responsible for the disappearance of about 60-70% of the species of oceanic life, This is because in that period most of the life on Earth was in the ocean. This extinction is believed to have been caused by an intense glacial period, although short that froze most of the planet's water. It is believed that the species most affected were sponges, algae, jawless fish, molluscs and cephalopods.

Devonian Extinction: Responsible for the disappearance of about 75% of marine species. This extinction was caused by the depletion of oxygen in the ocean, making life impossible for all aerobic marine organisms. This depletion of oxygen was caused mainly by the variation in the level of the ocean and climatic changes that may have been caused by asteroids.

Permian Extinction: Responsible for the death of 95% of life on earth. This extinction is known as the "mother of all extinctions" due to its destructive character, which devastated life on land and in the ocean. It is believed that this extinction was caused by volcanic activities triggered by the impact of asteroids. Almost all living species on earth were affected, such as insects, trilobites, sharks, boneless fish, reptiles, among others.

Extinction of the Triassic: It is not known exactly what caused this extinction, but it is estimated that it had the power to decimate 70-80% of terrestrial life, mainly arcosaurs and amphibians. The most accepted theory today is that the extinction was caused by recurrent volcanic activities that influenced huge volumes of carbon dioxide in the atmosphere, generating intense heating.

Cretaceous extinction: It was caused by the impact of an asteroid with the earth. The impact had the power to exterminate 75% of terrestrial life. This is the most well-known extinction, since it was responsible for decimating dinosaurs, however, some animals survived this impact, such as most marine species, frogs, birds, reptile and mammals.

Answer: zap70, ITAM.

Explanation:

An antigen is any substance that is capable of stimulating an immune response by activating lymphocytes, which are the body’s infection-fighting white blood cells. Examples of antigens could be proteins that are part of bacteria or viruses or components of serum and red blood cells from other individuals, all of them are foreign antigens originated outside the body. However, there can also be autoantigens (which are self-antigens), originated within the body. In normal conditions, the body is able to distinguish self from nonself. And the antigens that represent a danger induces an immune response by stimulating the lymphocytes to produce antibody or to attack the antigen directly. This is called an antigenic stimulation of the immune system.

ZAP-70 (Zeta-chain-associated protein kinase 70) is a protein that is part of the T cell receptor, thereby it plays a critical role in T-cell signaling. When the TCR (receptor of T cells) is activated by the presentation of the specific antigen through the MHC, a protein called Lck acts to phosphorylate the intracellular CD3 chains and the ζ chains of the TCR complex, allowing the binding of the cytoplasmic tyrosine kinase, ZAP-70. Lck then phosphorylates and activates ZAP-70, which in turn phosphorylates another molecule in the signaling cascade called LAT (short for Linker of Activated T cells), a transmembrane protein that serves as an anchor site for several other proteins. The tyrosine phosphorylation cascade initiated by the Lck culminates in the intracellular mobilization of calcium ion (Ca2+) and the activation of important signaling cascades within the lymphocytes. These include the Ras-MEK-ERK pathway, which is based on activating certain transcription factors such as NFAT, NFκB and AP-1. These transcription factors regulate the production of of certain gene products, most notably cytokines such as interleukin-2 that promote the long-term proliferation and differentiation of activated lymphocytes.

The ITAM motifs (immunoreceptor tyrosine-based activation motif) are sequences of four amino acids present in the intracellular tails of certain proteins that serve as receptors within the immune system. Thus, some receptors such as the TCR have ITAM sequences that, when activated, trigger an intracellular reaction based on consecutive phosphorylations.  Kinases are recruited for this purpose.

So, ZAP-70 is a protein tyrosine kinase with a role in T-cell receptor signal transduction. During T-cell activation, ZAP-70 binds to ITAM and becomes tyrosine phosphorylated. The binding of ZAP-70 to the phosphorylated ITAM is able to activate its kinase activity, and relieves the inhibition of the transcription factor which regulates genes that are involved in the immune reaction.

Answer:

a . Fish need 10 ml of water purifier to survive.

Explanation:

Fish need 10 ml of water purifier to survive because the data of 10 ml and 20 ml purifier is the same so it is recommended to use 10 ml purifier. First the data was same but by recording next week data, it shows slightly increase in the value of tank 2 while in the last week, both has the same value so we can concluded that by using 10 ml purifier is enough for the fish to survive.

Answer:

Its B/More purifier is needed to keep heated water clean.

Explanation:

Answer:

The answer is A.

Explanation:

The best fossil evidence that suggests Neandertals' ability to produce a language like modern humans comes from the hyoid bone.

This bone is located in the neck between the chin and the thyroid, which is also named "tongue bone" or "language bone".

So the correct answer is A.

I hope this answer helps.