PLEASE HELP! An original dna strand has the following base sequence: taggtaact What base sequence would be produced through dna replication? A B C D

Explanation:

Science is very important in every activities of our daily life. some of them are,

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Answer:

sicience is in our everyday life.  It is important to understand how science is incouprated in our every day life.  

Answer:

a) i. low, ii. high, iii. low

Explanation:

Answer:

The cells change after being exposed to the chemical, and this change is passed to the next generation of cells.

Explanation:

A mutation is any change, whether big or small, that occurs to the nucleotide sequence of a gene in a cell as caused by mistake during replication or induced by a mutation causing substance. These mutation-causing substances are called MUTAGEN.

A MUTAGEN is any substance that causes genetic mutation in an organism's cell. These changes in the nucleotide sequence can affect one or more phenotypic characteristics of the affected organism, which is also passed to offsprings because it is a genetic change.

Hence, a plant cell exposed to this mutagen will be induced to mutate.

Hence, the cells changing after being exposed to the chemical, which is also passed to the next generation of cells best provides explanation that the chemical is a MUTAGEN.

Answer:

C

Explanation:

did on test

The main function of carbohydrates is:

B. Storing energy

The main function of carbohydrates is to store energy. Thus, the correct option for this question is B.

Carbohydrates may be characterized as an important class of macronutrients that contains an organic compound such as sugar or starch. These macronutrients play a specific role in the storage of energy.

The storage of genetic information is facilitated by the DNA which is manufactured with the help of nucleotides. A cell is formed or repaired with the help of proteins which are derived from sequences of amino acids.

Like most organic compounds, carbohydrates are built of small, repeating units that form bonds with each other to make a larger molecule. In the case of carbohydrates, the small repeating units are called monosaccharides.

Therefore, the main function of carbohydrates is to store energy. Thus, the correct option for this question is B.

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Answer:

See below

Explanation:

The traits are:

Tall (T)

Green (G)

Short (t)

Might be yellow (g)

Let's make a Punnet square for it and determine the possible offspring and also their ratio!

See the punnet square.

The same genotypes are denoted by the same color.

So the ration of Genotypes are TTGG (Tall green) : TTGg (Tall green) : TtGg (Tall Green) : Ttgg (Tall yellow) : TTgg (Tall yellow) : ttgg (Small yellow) is 4:4:4:2:1:1  

So, the total ratio of Tall green to Tall yellow to Small yellow is 12 : 3 : 1

Answer:

The correct option is D: "Semen is composed of seminal fluid and sperm"

Explanation:

The semen is ejaculated from the male reproductive organ. It contains sperm cells and seminal fluid. The seminal fluid provides the energy source (fructose sugar) for the sperm to be able to swim towards the female's egg in order to fertilize it.

Answer:

answer is a

Explanation:

a

The following is true about Peptidoglycan - A. Makes up the cell wall of prokaryotes

Peptidoglycan

is a rigid envelope surrounding the cytoplasmic membrane of most bacterial species. It helps protect bacterial cells from environmental stress and helps preserve cell morphology throughout their life cycle

Thus, The following is true about Peptidoglycan - A. Makes up the cell wall of prokaryotes

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Answer:

endocrine system produces hormones required to coordinate reactions in the body.

Answer:

Desvantagens:

sofrendo de síndromes como Kinefelter que levam à deficiência de testosterona, gerando uma diminuição na massa muscular, cabelos e aumento dos seios.

Sofrendo de distúrbios de aprendizagem, distúrbios de crescimento, distúrbios cardíacos e distúrbios da puberdade, como a síndrome de Turner.

Hipogonadismo como a síndrome do duplo Y.

Explanation:

As mutações cromossômicas são caracterizadas por serem diferentes das mutações genéticas, pois são a perda ou o ganho dos cromossomos.

Os cromossomos estão, portanto, sofrendo anomalias e sem distinção de que tipo de cromossomo será afetado, é por isso que pode afetar os autossomos, bem como os não-autossomos.

Quando os cromossomos sexuais alterados são aqueles que dão frutos ao turner e às síndromes duplas e entre outros.

Outro exemplo disso é que as pessoas que têm multiplicação do cromossomo 21 sofrem da síndrome de Down, essa síndrome consiste em triplicar o conteúdo cromossômico.

Answer:

Ribosomes. Eukaryotic ribosomes are larger. They consist of a 60S large subunit and a 40S small subunit, which come together to form an 80S particle having a mass of 4200 kd, compared with 2700 kd for the prokaryotic 70S ribosome. The 40S subunit contains an 18S RNA that is homologous to the prokaryotic 16S RNA.

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Answer:

A molecule of mRNA is formed.

Explanation:

Translation is the second process that occurs in gene expression. It is the process by which the information encoded in the mRNA transcript is used to synthesize a protein.

The mRNA nucleotide sequence is read in a group of three nucleotides called CODON. Each codon specifies an amino acid. Translation, which occurs in the ribosomes (cytoplasm), reads the codon with an anticodon using the complementary base pairing rule i.e. A-U, G-C. This means that a CODON-ANTICODON pairs.

The anticodon carries a corresponding amino acid to the polypeptide sequence. A peptide bond is formed when two amino acids joins together in a condensation reaction.

Note: A molecule of mRNA is formed during transcription

Answer:

A molecule of mRNA is formed.

Explanation:

Translation is the second process that occurs in gene expression. It is the process by which the information encoded in the mRNA transcript is used to synthesize a protein.

Answer:

Genetic diversity can and will allow the flies to adapt differently, and learn how to survive with the pollution in the air. There may also be different traits that help them survive the pollution.

Explanation:

If they were all the same they could be quickly killed off and may never have the chance to adapt the the changing environment around them.

Answer:

Genetic diversity can increase the chance of the fly's population to better adapted or resistant to pollution.

Explanation:

Genetic diversity refers to the variation among the genes contained in a particular species or organism.

Genetic diversity will help the fly population to survive an exposure to pollution from a factory by increasing their adaptation to the pollution. It is very likely that some of the fly population would contain allelic variation that will help them resist the effect of pollution in the forest. The surviving flies will produce off springs that will carry the set of resistant genes.

Answer

The correct answer is option D, that is, cell produce through the spontaneous generation.

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It is now recognized that life originates from prior life and that cells originate from preexisting cells as a result of experiments and the discovery of the microscope. Thus, option D is correct.

All living things are made up of one or more cells, which is one of the three principles of the cell theory. The fundamental unit of structure and organization in organisms is the cell.

While doing studies on tissues in the late 1830s, zoologist Theodor Schwann and botanist Matthias Schleiden proposed the united cell theory.

The unified cell theory states that each living thing is composed of one or even more cells, every cell is the basis of life, and new cells can be created from existing cells.

Therefore, cell produce through the spontaneous generation.

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Answer:

Binocular vision

Explanation:

Vision can be explained as an ability to see directly some things that can be a threat or of benefits . It can also be explained as the ability to sense or perceive threat or danger, or something good.

In this case, binoculars vision is a situation of sensing threats or dangers from a very distant place through the help of the brain. Most times, the brain will be able to sense dangers from the interpretation it gathered from what it saw earlier, before the person is involved in the act.

Answer:

It depends on their genes, like some people cant stop gaining weight and some people can just eat and not gain weight because of their high metabolism. Everyone has different genes that runs through their family that  affects their body physically.

Explanation:

Answer:

B. Lysosomes are acidic because they contain acid hydrolases.

Explanation:

Lysosomes are small cell organelles that float outside nucleus. Lysosomes are present in the cytosol of the cells.

Lysosomes are acidic in nature having pH below 5 because of proton pumping through the plasma membrane to maintain this acidic pH.

This acidic nature of lysosomes play a role in fight against diseases.

Hence, the correct option is "B".

Options are not provided in the question, so the complete question is as follows:

In the three domain system, the domain Eukarya consists of all organisms that have which of the following?

A. Contractile vacuole

B. Nucleus

C. Chloroplast

Answer:

B. Nucleus

Explanation:

The three domain system include archaea, bacteria, and eukarya.

Eukarya, consists of all organisms whose cells have a nucleus. Eukarya contains multicellular and visible organisms, such as animals, people, plants and trees.

Bacteria and arachaea contains unicellular organisms and lack a nucleus.

Hence, the correct option is B. Nucleus.

Answer:

Hello!

Your answer must be C. PERIGEE!

Explanation:

What is a PERIGEE?

A perigee is just another word for "near Earth"...when our Moon is at the closest point ever during orbit from the centre of the Earth...

When this happens, FULL MOONS may be seen as well as significant tidal changes!

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Answer:

Binary fission is different from mitosis and meiosis because it occur in prokaryotic cells. And prokaryotic cells does not have nucleus like the eukaryotic cells and there is not mitotic spindle formation during binary fission compared to mitosis and meiosis.

Explanation:

Binary fission is a process of cell division where a single cells divide into two or more parts and the parts regenerate into another organisms which resembles the parent organisms. This occur only in prokaryotic cells and is very different from mitosis and meiosis that occur in eukaryotic cells because prokaryotic cells lack nucleus and no spindle formation in the nucleus.

Mitosis occur in eukaryotic cells because they have nucleus and membrane bound organelles and is the process where a parent cell divide to produce two daughter cells that are genetically identical to the parent cell and each cell having the same number of chromosomes of the parent cell.

Meiosis is a type of cell division that occur in eukaryotic cells and it occur in sex cells where a single cell divide into four daughter cells with each having half number of parent cell chromosomes.

Answer:

1.  Proteins

2. Carbohydrates

3. Nucleic acids

4. Lipids.

5. Proteins

6. Nucleic acids

7. Lipids

Correct on edge 2020!!!

Answer:

You could start a group and pick up trash from the ocean and inform people that if we throw trash in the ocean sea animals can die and the ocean will be dirty and one day we will have no water left to drink if all water is dirty

Explanation:

No explanation

Answer:

D. Evolutionary relationships

Explanation:

phylogeny describes the relationships of organisms which evolved on most closely related species

Phylogeny is the type of classification that names and identifies different organisms primarily by their evolutionary relationship. The correct option is D.

Phylogenetics is the analysis of the evolutionary history and interactions between or within organism groups in biology.

Phylogenetic inference methods that concentrate on observed heritable traits, including such DNA sequences, protein amino acid sequences, or morphology, are used to determine these relationships.

Thus, the correct option is D.

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Answer:

b. disruptive selection.

Explanation:

Due to technical difficulties, you will find the explanation section in the attached file

Answer:

0.28

Explanation:

This allele has incomplete dominance and analysis indicated a phenotypic distribution of 600M, 4000MN, 400N.

Using p+q = 1

Where q is the frequency of the N allele-

400N/5000 = 0.08 is the genotypic frequency out of 5000 in total - q²

Thus the frequency of the allele N is √q² = √0.08 = 0.28

The frequency of the N allele is 0.48

Incomplete dominance occur when a progeny of a particular parents gives or have a phenotype that combines both parents gene.

This phenotype is intermediate of the two parents and often unique.

Total population of Thailand= 5000

Allele P= 600M

Allele pq= 4000MN

Allele Q= 400N

According to hardyweingberg principles,

P+Q= 1

p2+2pq+q2=1

Therefore, to calculate frequency of allele N in the population we have;

N for Q= 400/5000=0.08

N for pq= 4000/5000=0.8

since pq contain both allele q and p in equal proportion we have

N for pq= 0.5*0.8 = 0.4

Frequency of N in allele N and MN is

0.08+ 0.4 = 0.48.

Therefore, the frequency of the N allele is 0.48

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Answer:

if it lost or gained all life would end

Explanation:

lost for five seconds

1:all things not firmly attached to the ground would start to float eg cars ships people or mid air floods

2;the atmosphere would drift into space causing lack of enough oxygen

3:the Earth's crust starts to expand outwards causing earthquakes and volcanic eruptions etc

4:the earth would drift away

if was like Jupiter's

1:all the blood in your body would pool at the bottom making the heart work harder to supply blood to other areas

2:the earth crust would start moving inwards therefore collapsing from the inside out

3all the satellites in the orbit would come crashing down etc

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Explanation:

A nerve cell or "neuron" is different because it has a more specialized structure of communication using synapses, axons, dendrites and chemicals that allow it to use an electrochemical communication method via neurotransmitters.

However, like "general cells" they too have membranes, nucleus etc

Explanation:

Think of an organelle as a microscopic organ.

An organ is exponentially like your liver.

An organelle is kind of the same concept except it's inside of a cell.

Answer:

A) Broadcasting B) Seed-drill

Explanation:

Options of sowing seeds are given below.

A) Broadcasting B) Seed-drill C) Transplanting D) Scattering E) None of these

Farmers used two methods for sowing of seeds such as broadcasting and seed drilling. Broadcasting is a method of seed sowing in which seeds are scattered in the field by hands or machines while seed drill is another method of sowing in which a device or machine is used which bury the seed at certain depth and at proper position in the field. In seed drilling method, seeds are sowing in lines while in broadcast, seeds are sown in every part of the field.

Answer:

1 d

2 c

3 d

4 b

5 b....

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