Somebody please help? Thanks​

Answer:

A

Explanation:

Explanation:

New strands of DNA are lengthened by adding new nucleotides at the replication fork.

These methods primarily involve DNA synthesis techniques, such as polymerase chain reaction (PCR) and DNA sequencing methods. However, it's important to note that scientific advancements may have occurred since my knowledge cutoff, and there could be new techniques or technologies available.

PCR is a widely used technique that allows for the amplification of specific DNA sequences. It involves a series of heating and cooling cycles, which enable the DNA to denature (separate into single strands) and then be replicated using a DNA polymerase enzyme. By repeating this process, multiple copies of the DNA sequence of interest can be generated.

DNA synthesis involves the chemical synthesis of custom DNA sequences in the laboratory. This process typically employs a method called phosphoramidite chemistry. It starts with a DNA template strand and adds nucleotides one by one, using chemical reactions to build the new DNA strand. This method allows for the controlled synthesis of long DNA strands with specific sequences.

Modern DNA sequencing technologies, such as next-generation sequencing (NGS), can indirectly contribute to DNA lengthening. During the sequencing process, DNA strands are often amplified and replicated to generate sufficient material for analysis. This amplification step can result in the lengthening of DNA strands.

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Answer:

advantage of growing mushrooms in the dark is that darkness preserves the moisture that mushrooms spores need to reproduc

Answer:

A. True

Explanation:

flow off a hill slope directly to a stream in the form of runoff, or it may flows downward through the unsaturated zone to reach the water table. The area at the stream or lake to which the groundwater is flowing. Recall that water is flowing in pores where there is friction, which means it takes work to move the water.

Answer:

The answer is A.

Bacteria, which are prokaryotic cells are single-celled entities that are primitive in structure and function as they lack a membrane-bound nucleus and other organelles.

Eukaryotic cells are the cells that are complex in structure and function as they have a membrane-bound well-defined nucleus and other membrane-bound organelles.

Answer:

Antibiotic resistance happens when germs like bacteria and fungi develop the ability to defeat the drugs designed to kill them. That means the germs are not killed and continue to grow. Infections caused by antibiotic-resistant germs are difficult, and sometimes impossible, to treat.

Explanation:

hope this helps:)

Answer:

Explanation:

This is an example

A. The following food chain in a simple terrestrial ecosystem:

Grass → Grasshopper → Frog → Snake → Hawk

B. The energy flow will be directed as follows:

grasshopper (primary consumer) frog (secondary consumer) snake (tertiary consumer) hawk (quaternary consumer)

Food Chain:

Consider the following food chain in a simple terrestrial ecosystem:

Grass → Grasshopper → Frog → Snake → Hawk

In this food chain, the grasshopper is the major producer, the frog is the secondary consumer, the snake is the tertiary consumer, and the hawk is the quaternary consumer.

B. Flow of Energy:

The giant arrow representing the flow of energy through the food chain would start with grasses and progress through each trophic level. Energy moves along the food chain in a way that passes from one organism to another when it is consumed.

The energy flow will be directed as follows:

grasshopper (primary consumer) frog (secondary consumer) snake (tertiary consumer) hawk (quaternary consumer)

The arrows indicate that the sun's energy is taken up by the grass through photosynthesis and then transferred to each successive level when the organism consumes it.

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Answer:

the answer for your question is 3 and 4

Answer:

b or c

Explanation:

I can't tell

blc

b.tells more like mass after reaction and before reaction are same blc atoms are equal

more like b

Answer: B. It has the same types of atoms on both sides of the reaction arrow.

Answer:

D. Agricultural runoff

Explanation:

Answer:

Tropical rain forests and savannas

Explanation:

Tundras are found at the north and south poles. Taigas are found in the northern areas but not near the equator.

Answer:

Tropical Rain Forests and Savannas!

Explanation:

Pls Mark Me Brainalist!

Answer:

Here ya go

Explanation:

The lysogenic cycle, is one of two cycles of viral reproduction. Lysogeny is characterized by integration of the bacteriophage nucleic acid into the host bacterium's genome or formation of a circular replicon in the bacterial cytoplasm. In some interactions between lysogenic phages and bacteria, the lysogenic conversion may occur, which can also be called phage conversion.

Answer:e. multiple of the options are true

Explanation:

DNA central dogman involves DNA replication, DNA transcription and DNA translation which involves the formation of protein.

Replicated DNA are transcribed to an intermediary mRNA(Messenger ribonucleic acid) from where it is moved from the nucleus to ribosome in the cytoplasm. Enzyme RNA polymerase helps in proof reading ,replication and transcription of bases during transcription. translation takes place in the ribosome with the help of ribosome in the presence of enzyme tRNA (transferase ribonucleic acid) that reads the codon and brings corresponding amino acid which are functional protein.

Answer:

Its a male, without down syndrome

Explanation:

The fact that it's a male is indicated from the presence of the Y chromosome. In order for this man to have down syndrome, he would have had 3 chromosomes at 21, which he doesnt, meaning he doesnt have down.

the only possibilities for the childrens genotypes are; A and AB, so the fact that the child has a blood type of O isn't possible

The genotypes of Mrs. Smith and Mr. Smith are AO and BO, respectively. Therefore, the blood group of the offspring will be A, B, AB, and O.

Genotype is the genetic makeup of an organism. Genotype refers to the alleles which are present in an organism.

ABO blood group shows multiple allelism which means it has more than two alleles which are A, B, and O. A and B alleles show co-dominance and O allele is recessive allele.

As per the information, Mrs. Smith has blood type A (genotype of Mrs. Smith could be AA/AO), and Mr. Smith has a blood group B (genotype could be BB/BO).

The blood group of the first child produced is AB. So, the genotype of this child is AB only. And, the blood group of their second child is O which is recessive. So, the genotype of the child will be OO only (homozygous).

Therefore, the genotype of the parents Mrs. Smith and Mr. Smith for their children to have blood group AB and O must be AO and BO only.

The punnett square is attached with the answer.

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Answer: Gettysburg

Explanation:

Answer: They compare the number of mutations to determine how long ago species separated and evolved.

You're welcome!

Answer:

C.They compare the number of mutations to determine how long ago species separated and evolved.

Explanation:

this is correct

Answer:

C i think.......................................

Answer:

See Explanation

Explanation:

Pathogens are disease causing organisms in the body. They attack diverse cells, organs, tissues and systems in the body thereby causing them to malfunction (to become diseased).

Antibodies are the body's natural protective mechanism against pathogens.  Antibodies engulf these pathogens and digest them. Then they produce certain chemicals called antitoxins which now destroy the toxins produced by these pathogens in the body.

Also they activate the systems involved in fighting pathogens by punching the cell wall of invading pathogens.

Answer:

top one is mountain range

Explanation: I think

the bottom one is Continental crust

Answer:

I think it's a girl since there is only one X

hope this helps

have a good day :)

Explanation:

Answer:

B: to break down sugar and release...

Explanation:

Mitochondria is the powerhouse of the cell! It breaks down sugar that comes into the cell and releases it back into the cell as energy

Answer:

O

Explanation:

It would be type O, because both parents have type O. Whether it was positive (+) or negative (-) would depend on both parents.