pls help my sister needs it theres no time

Answer:

they absorb water and minerals from the soil and use the energy of the sun to synthesize sugars (carbohydrates)

Answer:

messenger RNA

Explanation:

The type of RNA that contains the information for making a protein is called messenger RNA (mRNA) because it carries the information, or message, from the DNA out of the nucleus into the cytoplasm. Translation, the second step in getting from a gene to a protein, takes place in the cytoplasm

Answer:

1 . A 3.B 2 .B . this is all I know but try the internet for more

Answer:

cellular respiration is the process by which organisms uses oxygen (O²) and glucose (C⁶H¹²O⁶) to digest food molecules to acquire chemical energy for cells function.

Answer:

cytosine

Explanation:

Guanine is one of the building blocks of DNA. It's the G in the A, C, G, or T. Guanine in the double helix pairs with cytosine, so you will see CG pairs; one on one strand and one on the other.

Answer:

In a DNA molecule, G pairs with C

Explanation:

Wish you luck! Have a good day~

Answer:

Spanish

Explanation:

Answer:

B. RNA polymerase binds to the promoter.

Answer:

D) A and C

Explanation:

Gram staining is a laboratory technique used for bacterial species. It is used to differentiate between two groups of bacteria based on the components of their cell wall. Gram staining was developed by a scientist called Christian Gram in the year 1884. In the gram stain procedure, the following occurs:

- Due to the thick peptidoglycan component of their cell wall, GRAM POSITIVE bacteria retains the crystal violet due and stain VIOLET.

- On the contrary, due to the thin peptidoglycan component of their cell wall, GRAM NEGATIVE bacteria do not retain the crystal violet dye and hence stain, RED.

Based on this, a bacteria that has been gram stained has been tested for its GRAM REACTION and microscopic morphological characteristics, since it is a microbe.

Answer:

.0625 or 6.25%

Explanation:

there where no more correct solutions, they would be wrong, since the scientific method establishes relationships between facts, where it is a useful application for man.

Answer:

a) Side chains that can form hydrogen bonds are located on the outside of a protein, where they can stabilize tertiary structure by forming hydrogen bonds with water.

Explanation:

A hydrogen bond occurs between a hydrogen atom and four other elements. The side chain hydrogen bonds are resulted from the tertiary arrangement of structural components of the proteins.

The side chain hydrogen bond are present at the outside of the protein at places where the water forming the hydrogen bond can stabilize the tertiary structure.

Answer:

c. rotation on it's axis

Answer:

- The virus binds to a receptor on a human cell’s membrane.

- The virus releases its RNA genome into the cell.

- The virus’s RNA is translated into proteins by the cell’s ribosomes.

- Viral RNA polymerase helps transcribe more copies of the virus’s RNA.

- New viruses travel to the cell membrane of the infected cell and are released outside the cell.

Explanation:

Coronaviruses are viruses from the family Coronaviridae (Order Nidovirales), which are structurally composed of positive-sense single-stranded RNA (ssRNA) genomes with a size of approximately 25 to 33 kilobases. Since the coronavirus genome consists of an ssRNA, they can be directly translated into protein inside infected host cells. The coronavirus that has caused the recent pandemic can enter into host cells through its spike (S) glycoprotein which binds to the Angiotensin-converting enzyme 2 (ACE2) receptor. Subsequently, this virus exploits the host molecular machinery to encode an RNA polymerase which is used to generate RNA from an RNA template. Finally, these RNAs are translated into all viral components (structural proteins) and new viruses are recruited to infected cells.

Answer:

cell, tissue, organ, system​, organism

Explanation:

Answer:

I'm not sure there's a first exactly, but if I had to guess I'd say mitosis.

Explanation:

Meiosis produces genetically identical cells, results in diploid cells and takes place throughout an organism's lifetime; involved in asexual reproduction. Meiosis produces genetically unique cells, results in haploid cells, only happens at curtain times in an organism's life cycle; involved in sexual reproduction.

Answer:

D

Explanation:

LKM iF i AM CORRECT

Answer:

What conditions are necessary for a natural lake? Lakes form in a variety of ways when a natural depresion fills with water. The lake must have a source of water that is greater than the outflow and evaporation. It must be on earth that does not allow too much water to infiltrate.

Explanation:

Answer:

Lakes form in a variety of ways when a natural depression fills with water. The lake must have a source of water that is greater than the outflow and evaporation. It must be on earth that does not allow too much water to infiltrate.

Answer:

B- only sexually

Explanation:

Higher forms of life generally reproduce sexually in order to increase the amount of genetic variation within their population. I hope this helps!

Answer:

The correct answer is - increase, increase.

Explanation:

In some neurodegenerative diseases, some lower motor neuron cells die and the remaining lower motor neurons continuing the process of the vacated dead motor neuron cells to innervate the neuron and muscle synapses.

The size of the motor unit increases and due to the innervations of the new axon

increases the strength of the muscle contraction occurred by individually activating each surviving motor neuron. Here multiple motor units will be controlled by a single neuron.

Answer:

hi

Explanation:

Answer:

B halfway to the top of it's flight

Answer:

Hormones act only on cells not structures.

Explanation:

Hormones act only on cells and they  do not act on other structures because there are specific cells have receptors for that particular hormone. Some hormones bind itself to the receptors on the surface of target cells whereas other hormones enter the cells and bind itself to the receptors present in the cytoplasm or nucleus of the cell.

Answer: Bipedal posture allowed arms to be free to develop and use tools.

Explanation:

Answer:

Bipedal posture allowed arms to be free to develop and use tools.

Explanation:

Bipedalism favors in the arms to be free

Hope this helps! :)

Answer:

1) option a is correct. (260+270)/1545

(Note about this option: In the statement, it is written as (260+270) 1545. Lacks the division symbol, / )

2) From these results one can conclude that the two genes are linked (option a)

Explanation:

To know if two genes are linked, we must observe the progeny distribution. If heterozygous individuals, whose genes assort independently, are test crossed, they produce a progeny with equal phenotypic frequencies 1:1:1:1. If we observe a different distribution, phenotypes appearing in different proportions, we can assume linked genes in the double heterozygote parent.  

We might verify which are the recombinant gametes produced by the di-hybrid, and we will be able to recognize them by looking at the phenotypes with lower frequencies in the progeny. Phenotypes with the highest frequencies represent the parental gametes.

To calculate the recombination frequency, we will use the following formula: P = Recombinant number / Total of individuals.  

In the present example:

Parental)        YySs                        x                 yyss

Gametes)  YS parental type                        ys, ys, ys, ys

                 ys parental type

                 Ys recombinant type

                 yS recombinante type

The total number of individuals in the offspring: 1545

Phenotypic class Number of offspring  

According to this information, the phenotypic frequencies of the progeny differ from the phenotypic ratio 1:1:1:1. We can assume then, that these genes are linked.

The recombination frequency is:

P = Recombinant number / Total of individuals

P = 260 + 270 / 1545

P = 530/1545

P = 0.343

The genetic distance between genes is 0.343 x 100= 34.4 MU.

Calico cats are predominantly female because they’re colouring is related to the X chromosome.

Have a great day <3  (I love cats)

Answer: In cats, one of several genes controlling fur color is located on the X chromosome. The gene has two versions, or alleles. One form of the gene codes for orange fur (XB), and the other form codes for black fur (Xb). While it's difficult to say which allele is dominant and which is recessive, since only one is ever expressed (see below), let's say, for the sake of argument, that orange is dominant to black. Ordinarily, this would mean that an animal inheriting one copy of each gene (genotype XBXb) should have orange fur. Surprisingly, a female cat heterozygous at that locus (XBXb) will not be orange. Instead, her coat will be a patchwork of orange and black, a condition known as tortoiseshell. Male color expression is straightforward. Because only one allele exists for the gene in each cell, it will be expressed. And all males have only B or only b. There are no heterozygotes, because the Y does not carry the allele.

Explanation:

I got this from an article! I hope this helps.

Answer:

leopard gecko

Explanation:

Answer:

you chose based off what i type

Explanation:

crested geckos need a vivarium and a uvb light but turn it off at night cause they are nocturnal they need stuff to climb on a hide and a clean cage the eat a powder mixed with water and crickets you can give them other bugs to they can jump from your hand to your arm if they want to they will drop there tail if scared they do not grow back also super cute

leopard geckos need a 20 gallon or bigger terrarium with uvb to turn off at night and a heat pad 24\7 make sure its no to hot leopard geckos need a variety of bugs like crickets and bubia roaches and other  and a clean tank and at least 2 hides they will drop there tail but they do grow back they just look a little different but are super cute