1. Who influenced Darwin's idea that life could change slowly over a period of time?

2 answers:

8 0

1. Hutton and Lyell were the people that <span>influenced Darwin's idea that life could change slowly over a period of time.

2. Malthus was the person who </span><span>influenced Darwin's idea that some offspring are better suited for survival than others.

3. "Traits acquired during an organisms lifetime can be passed down to its offspring" is the </span><span>parts of Lamarck's theory of evolution that are no longer supported.

4. Darwin concluded that is humans can influence an offsprings trait, so can nature and this is how </span><span>livestock breeders and farmers influence Darwin's ideas.</span>

e-lub [12.9K]3 years ago

5 0

1. Hutton and Lyell were the people that influenced Darwin's idea that life could change slowly over a period of time. Both James Hutton and Charles Lyell were geologists who argued that Earth’s surface was shaped by gradual geological processes and that Earth must be far older than most people believed.
2. Malthus was the person who influenced Darwin's idea that some offspring are better suited for survival than others. Malthus was an economist who argued that human populations grow faster than the resources they depend on. He explained that population growth would always overpower food supply growth, creating states of hunger, disease, and struggle. That stimulated Darwin who than considered that some of the competitors would be better equipped to survive and that those who were less able would die out, leaving only those with the more desirable traits.
3. "Traits acquired during an organisms lifetime can be passed down to its offspring" is the parts of Lamarck's theory of evolution that is no longer supported. Lamarck was the first scientist that proposed that species change over time, but his idea of the inheritance of acquired characteristics is now considered as incorrect (yet, because of the knowledge of epigenetics today, some of his ideas might be partly true).
4. Darwin concluded that humans can influence an offsprings trait, and this is how livestock breeders and farmers influence Darwin's idea. The process of human influence is called artificial selection and it is a process in which organisms evolve traits useful to humans because people select which individuals are allowed to reproduce and pass on their genes to successive generations.

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<h3 /><h3>What is DNA replication?</h3>

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In the video of the amoebas sisters it is briefly explained that..

DNA replication occurs in the 5' → 3' direction and the strands are separated by the action of enzymes, which break the bonds between the nitrogenous bases and unwind the strands, opening the double helix.
As DNA uncoiling takes place, other enzymes act to catalyze the synthesis of two new sequences using the parent strands as a template. Each strand created joins an original strand of DNA. Therefore, the process is classified as semi-conservative.
DNA is a double helix molecule and for its duplication to occur, the first step is to unpack this structure by the action of the DNA helicase enzyme. The helicase recognizes the origin of replication and works by breaking the hydrogen bonds in the nitrogenous bases A-T and C-G. This process occurs at several points and forms "replication bubbles".
As the bonds unravel, it's like a zipper opening, so this step gives rise to a Y-shaped structure called the replication fork, the starting point of duplication.
The primase enzyme is responsible for synthesizing a portion of RNA, called a primer. In this step, several primers are generated and are joined to the chain to start DNA synthesis.
The DNA polymerase enzyme is the replication enzyme responsible for extending the new strand by adding the bases (A, C, G and T). This step is directed from the 5' end, with a phosphate group, to the 3' end, with a hydroxyl group. This phase is called continuous replication.
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The enzyme DNA ligase causes the DNA fragments to be joined and the DNA sequenced into two continuous strands.

thus, in a simple way, how DNA replication occurs in the video of the amoebas sisters.

learn more about DNA in brainly.com/question/264225?referrer=searchResults

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