During what major stage does a person feel either industry or inferiority?

ratelena [41]

The Answer to this question is b

6 0

3 years ago

The initiation of transcription requires melting of the DNA double helix, i.e. separating hydrogen-bonded base pairs, immediatel

sertanlavr [38]

Answer:

The correct answer is B. DNA helicase first unwinds the double helix around the +1 site.

Explanation:

The helicase is an enzyme that specifically breaks the hydrogen bonds of the bases in the transcription process. As E. Coli is a prokaryote, then, the transcription only occurs in one point of the circular DNA. The promoter region indicates where the DNA polymerase has to start replicating and the Topoisomerase unwinds the parts of the DNA that are being excessively twisted because of the separation of the two strands.

4 0

3 years ago

which of the following best describes a difference between mitosis and meiosis? plz help quickly this is for a test

abruzzese [7]

Answer:

The answer is A

Explanation:

Im am going to be honest the reason why i think its A is because Mitosis occurs in somatic cells.

5 0

3 years ago

How did Burmese pythons become an invasive species?

g100num [7]

Answer:

19

Explanation:

3 0

3 years ago

Read 2 more answers

Prior to the 1600s it was believed that all living things were either plants or animals. Which of these inventions led to the de

hram777 [196]

Explanation:

Microscopes are instruments used for viewing microscopic cellular structures, not visible with the human eye. With an arrangement of lenses, and manipulation of light or electrons, these magnify very small objects. Light microscopy uses light and multiple lenses, while electron microscopes use electrons. These create larger images of objects.

Subcellular components and molecules require the closed system of the cell in order to function with different arrangements and features being key to certain phyla, groups and species; this aided in the reclassification of organisms into the kingdoms and phyla we know today.

Further Explanation:

Biology's unifying principle states that cells are the basic units of biological organisms. Cells sharing a similar origin, group together in the body to form tissues; these typically share physical features and are arranged in regular patterns. All living things, grow, respire, reproduce etc. these processes are carried out by cells, which are thus integral to their survival.

Before the discovery of cells by Robert Hooke in 1665 with a simple microscope, many scientists had long believed that life rose spontaneously over extended periods of time. Circa 1668 Francesco Redi, challenged the idea of spontaneous generation of maggots from rotting meat by placing meat in various sealed open, partially sealed and sealed containers. Sealed containers did not show the presence of maggots, and he theorized that these were likely from eggs laid on the meat by flies. This was the development of the theory of abiogenesis (cells arise from other living cells); this eventually proved the unifying principle we know today.

Cell theory states that living things are comprised of cells, as their smallest units capable of functioning. Microscopy helps to prove this, as cells and their varying components can readily be seen, observed and later classified. Their components and molecules require the closed system of the cell in order to function with different arrangements and features being key to certain phyla, groups and species; this aided in the reclassification of organisms into the kingdoms and phyla we know today.