What phase does homologous chromosomes are separated

Answer:

La globalización hace más vulnerable la economía al cambio climático. La susceptibilidad de la red económica global al estrés por calor de los trabajadores se ha duplicado en la última década, según concluye un nuevo estudio publicado en la revista 'Science Avances'

Explanation:

Answer:

Rhinos are A endangered

Answer:

A rose grower should use Muriate of potash, Potassium sulfate, Potassium nitrate, Sulfate potash magnesia, Kainite etc.

Answer:

Hetezygous

Explanation:

The genotype of the initial green pod plant would be heterozygous.

Let pea pod color be represented by C (c) alleles.

First, let us assume that the genotype of the green pea pod plant is homozygous dominant, CC. This was crossed with homozygous recessive, cc.

           CC   x   cc

      Cc   Cc   Cc   Cc

All the progeny will have Cc genotype with phenotypically green color. This is in contrast to the result obtained from the test cross in the illustration, hence the genotype of the initial green pea pod plant cannot be homozygous dominant.

Now, let us assume that the genotype is Heterozygous, Cc.

       Cc   x   cc

 Cc   Cc   cc   cc

50% of the progeny has Cc genotype with phenotypically green color while the remaining 50% has cc genotype with phenotypically yellow color. This is consistent with the result from the illustration.

Hence, the genotype of the initial green pea pod plant is heterozygous.

Answer:

a. white

b. Bb

Explanation:

A test cross usually involve crossing an individual whose zygosity is unknown with a homozygous recessive version of individual of the same species.

Brown coat (B) is dominant over white coat (b). Hence, there is no way to physically distinguish between a BB rabbit and a Bb  rabbit because both of them will be brown. A bb rabbit however will be white in appearance.

A test cross would therefore involve crossing the brown male rabbit with bb (white) rabbit.

Assuming that the genotype of the brown rabbit is BB, all the progeny will be brown as shown by the cross below.

         BB   x   bb

    Bb   Bb   Bb   Bb

In order word, assuming the genotype is Bb, some of the offspring will appear brown while some will appear white.

      Bb  x   bb

Bb   Bb   bb   bb

Hence, the only way the test cross would produce white offspring is if the genotype of the brown rabbit is heterozygous, Bb.

Answer:

Convergent evolution

Explanation:

Convergent evolution can be described or explained as a process in evolution in biology. It usually occurs when two species from unrelated lines develop the same traits or features. This is believed to have happened due to the fact that they live in similar or related habitats, and have to develop solutions to the same kind of problems.

Therefore, in this case, the type of evolution between the two organisms mentioned is convergent.

Answer:

Interphase

Explanation:

Interphase is made of  G1, S and G2 phases. In G1, cells basically fuel up on necessary nutrient and see if nutrients are available to sustain a dna replication. Then in S phase, DNA replicates. Then in G2, cell checks if there's any error in replication, if none detected some more nutrient checks are performed and then cell proceeds to mitosis.

Answer:

1. Fats contain mostly C-H bonds, it has less oxygen therefore making it a high energy compound

2. mRNA plays a vital role in protein synthesis. It's a single stranded RNA molecule that contains genetic information that can be taken outside the nucleus (unlike DNA which cannot leave the nucleus). Its created during transcrption, and is used during translation to create proteins

3. (Look at image)

1. The organic molecules that contain esters of fatty acids and a mixture of compounds are called fats. They provide energy to the body for functioning. They provide slow energy but the most efficient energy.

The amount of calories supplied by fats is twice as compared to carbohydrates and proteins. The excess of fats is stored in the body for future purposes.

2. mRNA is a type of RNA and plays a vital role in the process of translation. It is a single-stranded molecule that contains genetic information transcripted from DNA and is transported out from the nucleus into the cytoplasm.

The main function of mRNA is in protein synthesis. It helps in the formation of amino acid sequence that undergoes modification to form proteins.

3. The general formula of amino acid is [tex]\rm R-CH(NH_{2})-COOH[/tex].

The side chains of different amino acids vary accordingly. The structure consists of a carboxylic group along with an amino group and an organic side chain.

To learn more about mRNA and amino acids follow the link:

https://brainly.com/question/1242452

Answer:

It is the outer non-living part of the cell but not an organelle which encloses cell membrane and provides a fixed shape. It is an outermost, flexible, living organelle of the cell which provides shape to the cell. The cell wall is elastic. The cell membrane is non-elastic.

Answer:

A) Pituitary Gland B)By analysing the given observations in the question.

Explanation:

THS, thyroid stimulating hormone, is an hormone produced by the pituitary gland and in return it stimulates the thyroid gland that produces hormones such as T3 and T4.

We can conclude from the given information that Amanda's thyroid gland does not have a problem with producing and secreting the T3 and T4 hormones when THS is present in her body.

But the low THS levels show that the problem is with her pituitary gland causing her to have low levels of THS.

We can reach this decision by analysing the given information.

I hope this answer helps.

Answer:

Mechanical digestion

Chemical digestion

Explanation:

Food is physically broken into smaller parts. For instance, by chewing.

Food is broken down by acids and enzymes into its basic units.

Answer:

4. The formation and evolutuion of stars and galaxies

Answer:

The given statement is true.

Explanation:

An error at the time of the replication of DNA or mutation can either result in the addition or deletion of DNA bases that eventually makes a substantial change in the sequence of DNA, and thus, will exhibit a substantial influence on the recognition sequence because of which one can witness a change in the site of recognition.  

This variation witnessed in the DNA's recognition site can be evaluated by treating the mutated DNA with the restriction enzymes that exhibit a uniqueness for the restriction sites. Afterward, by going through the process of gel electrophoresis one can witness the change in the number of bands of DNA showing variation in the restriction sites.  

Answer:  Myelin Sheath. The Myelin Sheath of a neuron consists of fat-containing cells that insulate the axon from electrical activity. This insulation acts to increase the rate of transmission of signals. A gap exists between each myelin sheath cell along the axon.

Explanation:. Myelin can greatly increase the speed of electrical impulses in neurons because it insulates the axon and assembles voltage-gated sodium channel clusters at discrete nodes along its length. Myelin damage causes several neurological diseases, such as multiple sclerosis.

Answer:

Myelin Sheath. The Myelin Sheath of a neuron consists of fat-containing cells that insulate the axon from electrical activity. This insulation acts to increase the rate of transmission of signals. A gap exists between each myelin sheath cell along the axon.

HOPE IT HELPS : D

Explanation:

Answer:

False

Explanation:

Gram stain technique is a method use to classify bacteria into large groups base on their different cell wall components. It differentiate gram positive and gram negative by coloring them with red or Violet colors.

Gram stain is use for identification and classification of bacteria.

Gram positive stain violet due to presence of thick layers of peptidoglylcan in their cell walls and gram negative stain red due to thin layers of peptidoglylcan in their cell walls.

Answer:

Most physiological alterations during aging and it is usually characterized by the deposition of a pigment called liposfuscin.

The valves of the heart also becomes stiff and thickened as a result of the pigment mentioned above. This makes the flow of blood slower than normal and contributes to cardiovascular diseases such as Stroke, high blood pressure etc.

Answer: D trust me on this

Explanation:

the rocks contain iron that points in different directions depending on earths polarity

The polarity of Earth affects the iron in the rocks, which points in various ways, so rocks on the ocean floor form a pattern of magnetized stripes.

The idea of paleomagnetism, according to which the arrangement of the earth's tectonic plates depends on the iron present in magma, is one of the theories explaining seafloor spreading. The positive and negatively charged ions are represented by the stripes.

The magnetic strips, also known as magnetic anomalies, are identified by white and black strip patterns. They have ions that are positively and negatively charged. As a result, the magma magnetizes with the Earth's magnetic field when it emerges from the ridges.

Therefore, the polarity of Earth affects the iron in the rocks, which points in various ways.

Learn more about magnetized stripes, here:

https://brainly.com/question/28267845

#SPJ2

Answer:

It can be explained by hybridization among human and neanderthal ancestral populations.

Explanation:

Next-generation sequencing (NGS) technologies coupled with bioinformatics tools have enabled to confirm admixture between Neanderthals and humans. The technique to identify admixture events consists in discovering nucleotide regions from neanderthal genomes that could be inserted in human genomes, thereby the observed sequence homology must be statistically significant (e-value). This emergent research field is known as paleogenomics.

Answer:

it binds together

Explanation:

dna is commonly present in the shape of a molecule with double strands. In a similar way, these two molecules connect to each other in a mechanism called hybridisation. DNA naturally, the new strand hybridizes to the old strand when it is replicated.

hope this helped!

During hybridization, DNA strands bind together. The correct option is A.

The process of joining two complementary strands of DNA from various sources to create a double-stranded molecule is referred to as hybridization.

The complementary DNA strands join together during this phase and create strong hydrogen bonds between their corresponding base pairs. Adenine (A) and thymine (T) and guanine (G) and cytosine (C) couple up specifically to form this interaction.

Numerous molecular biology procedures, including DNA hybridization tests, polymerase chain reaction (PCR), and DNA sequencing, frequently employ hybridization.

Hybridization enables the identification and amplification of particular DNA sequences as well as the analysis of genetic data by allowing the complimentary strands to come together.

Thus, the correct option is A.

For more details regarding Hybridization, visit:

https://brainly.com/question/32752412

#SPJ6

Your question seems incomplete, the probable complete question is:

10. What happens to DNA strands during hybridization?

A. It binds together.

B. It splits from each other.

C.  It is degraded.

D. It is sliced into different sections.

Answer:

transcription

Explanation:

transcription of DNA by tRNA is the first step of protein synthesis

Answer:

Transcription.

Explanation:

Answer:

Answer is D, Deforestation

Explanation:

Hope this helps

Have a nice day :D

Answer:

Each experiment reveals a different piece of information that is needed to develop the theory.

Explanation:

Answer:

Each experiment reveals a different piece of information that is needed to develop the theory.

Explanation:

Answer:

=> There will be mutation of gene in each strain.

=> The offsprings are wild type.

Explanation:

So, we are given the following main or Important information or data which I going to assist us in solving this particular Question or problem:

=> There is an isolated a true-breeding strain of wingless Drosophila.

=> " six other true-breeding strains of Drosophila with the same mutant phenotype have been isolated independently in the lab."

Therefore, the flies that belong to different complementation groups will cause MUTATION TO OCCUR ON THE SAME GENE.

Mutation will occur because here we have dual but different genomes and when you take a look at these genomes they both have a trait of recessiveness and this combination of the genomes will cause the mutation.

Quick note: on the strain, occurence if different mutation might or might not occur.

Answer:

Topogenic sequences share a series of structural features, and thereby computational algorithms can be used to predict these protein-membrane segments  

Explanation:

Topogenic sequences are protein segments formed by alpha-helical transmembrane domains, which are required for the insertion of membrane proteins. These domains share a series of well-defined features: they are composed of segments of about 20 hydrophobic amino-acid residues. In consequence, computational algorithms can be designed to identify protein patterns that fulfill these structural requirements (i.e. segments with a length of 20 residues, hydrophobic level, etc). The models assign a similarity threshold (threshold value) that predict if the similarity level of the protein pattern is good enough to detect a topogenic segment.

Answer:

I think they are not beneficial to animals

Explanation:

because

1.they are not free to live for themselves , find mates and have children

2.they are there so as the people can get money

Answer:

Proposition:

Zoos are beneficial  for animals because :

- Keeps them away from poachers

- Medical care is provided

- protects them from predators

Opposition:

- in captivation most animals get depressed

- for doing tricks they are left starving

- they are kidnapped from the jungles away from the parents

(THE POINTS DEPEND ON THE TYPE OF DEBATE (THW;THBT;THR;THS))

(I have given it in general)

HOPE IT HELPS :)

PLEASE MARK IT THE BRAINLIEST!

Answer:

300,000

Explanation:

It is 30% of a million and quite a bit of money that can be used to buy a house.

Answer:

300000

Explanation:

lol easyyy

The given question is not complete, the complete question is:

In lab we looked at succession using marine organisms. The process of succession also happens because of wildfires, and those communities do recover and follow the general model of succession. Below is a photo I took one year after a fire at Lake Tahoe. You can see see the burned trees in this photo. What proportion of r-selected species relative to K-selected species should we expect to see at this early stage of recovery? a.  # of r-selected species > # of K-selected species b. # of r-selected species = # of K-selected species c. # of r-selected species < # of K-selected species. The diagram is given in the attachment below.

Answer:

The correct answer is option A, that is, the population of r-selected species will be more in comparison to the k-selected species.

Explanation:

Based on the evolutionary strategies, the preferred selection of the species that generate small body sizes, short life span offspring, and exhibit early semelparity and thrive in unstable surroundings is r-selection. These species possess the tendency to overcome the huge loss of offspring and are considered opportunists.  

On the other hand, the preferred selection of the species that exhibit delayed reproduction, generate few large body size, possess long life span offspring and iteroparity, and thrive in stable surroundings is k-selection. Thus, it is clear that the r-selected species will be more in number than the species that are k-selected as r-selection plays an essential role in the initial phases of succession.  

Answer:

During secondary succession, the soil isn't damaged hence there is no need for pioneering species such as lichens to dissolve the damaged soil into organic ones that can sustain more complex plants.

Explanation:

Secondary succession, type of ecological succession (the evolution of a biological community’s ecological structure) in which plants and animals recolonize a habitatafter a major disturbance—such as a devastating flood, wildfire, landslide, lavaflow, or human activity (e.g., farming or road or building construction)—significantly alters an area but has not rendered it completely lifeless. Secondary succession is distinguished from primary succession, in which a biological community develops where no life had existed

Secondary succession, type of ecological succession (the evolution of a biological community’s ecological structure) in which plants and animals recolonize a habitatafter a major disturbance—such as a devastating flood, wildfire, landslide, lavaflow, or human activity (e.g., farming or road or building construction)—significantly alters an area but has not rendered it completely lifeless. Secondary succession is distinguished from primary succession, in which a biological community develops where no life had existed previously.

Secondary succession follows a major disturbance, such as a fire or a flood. The stages of secondary succession are similar to those of primary succession; however, primary succession always begins on a barren surface, whereas secondary succession begins in environments that already possess soil. In addition, through a process called old-field succession, farmland that has been abandoned may undergo secondary succession.

Secondary succession takes place where a disturbance did not eliminate all life and nutrients from the environment. Although fire, flooding, and other disturbances may bring visible ruin to a landscape, drive out many plants and animals, and set back the biological community to an earlier stage, the habitat is not lifeless, because the soil retains nutrients and seeds that were set down before the disturbance occurred. Buried seeds can sprout shortly after the effects of the disturbance pass, and some may have greater success from reduced competition and reduced shading. Some species may be adapted to the frequent passage of a particular disturbance. For example, the jack pine (Pinus banksiana), a tree species common in the northeastern U.S. and Canada, requires heat from a wildfire to open its cones (strobili) before seeds can be spread for new growth.