Answer:
The correct answer is a. Helicase unwinds DNA
Explanation:
DNA replication is a process in which DNA make it's own copy. There are several enzymes and factors which access the DNA replication process like helicase, primase, SSB protein, DNA polymerase etc.
The first step in DNA replication is the unwinding of double stranded DNA which is accomplished by an enzyme called Helicase. Helicase opens up the double stranded DNA at replication fork by breaking the hydrogen bond between the nucleotides of complementary strands.
This provides a single stranded template for DNA polymerase to form a new complementary strand. In <em>E. coli </em>Dna B is the primary helicase and in humans the primary helicase is MCM( minichromosome maintenance protein complex).
<span>ribonucleic acid (RNA)</span>
Highly conserved genes are important for normal function of the organism of every species from prokaryotes to eukaryotes. So such genes do not mutate easily and are highly preserved.
https://socratic.org/questions/what-does-it-mean-for-a-gene-to-be-highly-conserved
Hope this helped!!
~xox Melis
Answer:
Hippos likely formed around 15 million years ago from a cluster of anthracite, the very first whales arose over 50 million years ago, and the ancestor of both groups was aquatic. The first whales have been typical earth creatures, like Epictetus. They used to have large, carnivorous heads and sharp teeth.
Explanation:
Responder:
Hipótesis científica
Explicación:
El procedimiento de representar un fenómeno que no puede explicarse a la luz de la teoría científica actual se llama hipótesis científica.
Generalmente, en el orden de los Métodos Científicos, las observaciones y las preguntas son los primeros pasos. Sin embargo, para proporcionar posibles explicaciones al fenómeno obtenido al hacer preguntas y observaciones, se necesita una suposición o sugerencia. Esta es la suposición científica: para que sea válida, debe ser refutada, basada en la observación cuidadosa del fenómeno.
su esencia es predecir los posibles resultados de un intento de experimentos y después de realizar los experimentos para confirmar si el resultado está de acuerdo con la predicción.
Answer:
Scientific hypothesis
Explanation:
The procedure of representing a phenomenon which can not be explained in the light of the present scientific theory is called scientific hypothesis.
Generally in the order of Scientific Methods observations and asking of questions are the early steps.How ever, to provide possible explanations to the phenomenon by asking questions and observation , a guess or suggestion is needed. This is the scientific guess,For it to be valid,it must be refuted, based on the careful observation of the phenomenon.
its essence is to predict the possible outcomes of an intending experiments and after conducting the experiments to confirm if the outcome agrees with the prediction.
