Answer:
Enzymes like DNA polymerase III, HELICASE, Primase, Topoisomerase, ligase.
Explanation:
DNA replication is an important process that must occur prior to cell division. DNA content of a cell becomes duplicated in the process. This process, however, cannot occur without some vital elements that play specific roles. These elements are mostly enzymes which includes DNA polymerase III, HELICASE, Primase, Topoisomerase, ligase.
DNA POLYMERASE III is the main enzyme in this process, it adds nucleotides that are complementary to the unwinded DNA strand in order to synthesize its replica.
However, a new complementary DNA strand cannot be synthesized if the original double-stranded DNA does not unwind or separate. This process of unzipping the DNA into a Y-shaped replication fork is done by HELICASE.
DNA polymerase III starts adding nucleotides from the 3' end of the DNA strand. In order to recognize this end on the strand about to be synthesized, PRIMASE synthesizes a short strand of nucleic acid called Primer. This primer provides the DNA polymerase with something to start working on.
TOPOISOMERASE works on the double-stranded DNA prior to formation of replication fork by helicase. It helps prevent the DNA strands from becoming too tight and super coiled in order to make unzipping easy.
LIGASE helps to fill up those gaps in the DNA fragments during the synthesis of a complementary strand.
Answer:
D
Explanation:
Alternative energy is best defined as the use of energy sources other than traditional fossil fuels, which are considered environmentally harmful and are in short supply. Fossil fuels consist of natural gas, coal, and oil. Currently, fossil fuels are the most used energy source to heat our homes and power our cars.
A person's original chromosomes and their component genes constitute that person's genotype (Option a is correct).
<h3>What is a genotype?</h3>
A genotype can be defined as the genes and their variant (alleles) contian in a given nucleotide sequence of DNA, which can be represented by a linear chromosome.
The genotype may contain only a few genes in small chromosomes (e.g., plasmids) or many genes in linear human chromosomes (over more than 1000 genes).
In conclusion, a person's original chromosomes and their component genes constitute that person's genotype carried out by the individual and his/her cells (Option a is correct).
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Answer:
The answer easier
Explanation:
It's the most commonly used form of classification or type of identification key used in biology as it simplifies identifying unknown organisms. Typically, a dichotomous key for identifying a particular type of object consists of a specific series of questions. When one question is answered, the key directs the user as to what question to ask next. Dichotomous keys typically stress identifying species by their scientific name, as each individual species has a unique scientific name.
<span>A spider is small enough that its weight can be supported by surface tension, the relatively weak forces that hold water molecules together. </span>Water molecules "bond"<span> to other water molecules around them in all directions, so they tend to stick more strongly to their neighbors, forming a film-like layer across the surface</span>
