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2 years ago

Why do scientist believe that mitochondria originated from ancient prokaryotes?

Biology

1 answer:

Misha Larkins [42]2 years ago

5 0

The mitochondria in the neurons and all the
other cells in the human body resemble
bacteria more precisely, scientist believe that
mitochondria originated when primitive Aerobic
prokaryotes bacteria were captured by
anaerobic eukaryotic.

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You have an organism with the following characteristics - it grows as single cells. It is heterotrophic and has a cell wall that

prisoha [69]

Answer:

Halophiles of Archaea domain

Explanation:

The Archaea are characterized as single cells. They can exihibit both the autotrophic and heterotrophic mode of nutrition. Their cell walls do not contain peptidoglycans but contain pseudo-peptidoglycans etc. Their environmental conditions also need to be known to give a definitive identification and also are their organelles membrane bound.

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3 years ago

Read 2 more answers

1. What are Chargaff's rules?

kotegsom [21]

1)Chargaff's rules state that DNA from any cell of any organisms should have a 1:1 ratio of pyrimidine and purine bases and, more specifically, that the amount of guanine should be equal to cytosine and the amount of adenine should be equal to thymine. This pattern is found in both strands of the DNA.

2)DNA structure

DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.

3)A nucleotide consists of three things: A nitrogenous base, which can be either adenine, guanine, cytosine, or thymine (in the case of RNA, thymine is replaced by uracil). A five-carbon sugar, called deoxyribose because it is lacking an oxygen group on one of its carbons. One or more phosphate groups.

4)DNA replication is said to be semi-conservative because of this process of replication, where the resulting double helix is composed of both an old strand and a new strand. ... Semiconservative replication would produce two copies that each contained one of the original strands and one new strand.

5)The diagram has show in above.

6)complementary base pairing is necessary because the double helix shape would not be the same if not. Doubles would only pair with doubles and the singles to singles.

HOPE THIS HELPS YOU.

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3 years ago

Which statements describe dichotomous keys? Check all that apply.

miskamm [114]

Answer:

1,3,4

A dichotomous key uses questions or statements to help identify organisms, it also uses characteristics in it's questions ( that may be yes-no) and statements to help separate organisms from one another.

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Explanation:

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4 years ago

C. Directions: Answers must be in essay form. Outline form is not acceptable. Labelled diagrams may be used to supplement discus

amm1812

Answer:

The structure and function of the chromosome are different in both the prokaryotic chromosome and eukaryotic chromosome. They differ in their size as the genetic information they carry is different from one another.

Eukaryotic chromosome have a different shape from the prokaryotic chromosome as the bacterial chromosome is circular and less complex due to no histone found in prokaryotes as we see in the eukaryotic chromosome. SIze of the bacterial or prokaryotic chromosome is also small and not found in condensed form as these cells carry less genetic information than eukaryotic cells.

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3 years ago

Operons allow prokaryotes to...?

labwork [276]

a. replicate DNA at the appropriate time.

Prokaryotes are one celled organism that only reproduce by binary fission. A copy of a copy, of course the DNA is copied as well. DNA is duplicated a succinct period of time when necessary since the energy needed to perform this process is necessarily abundant.

3 0

3 years ago

Why do scientist believe that mitochondria originated from ancient prokaryotes?​

Why do scientist believe that mitochondria originated from ancient prokaryotes?