Numerous lines of evidence exist, including that
mitochondria and chloroplasts have their own circular DNA (prokaryotes also have circular DNA)
, mitochondria and chloroplasts have a double membrane (the inner membrane would have initially been the ingested prokaryote’s single membrane, and the outer membrane initially …
What evidence supports the theory of endosymbiosis quizlet?
What evidence exists to support the endosymbiotic origins of eukaryotic cells? The endosymbiotic theory is
based on mitochondria and chloroplasts of eukaryotes
. Both structures have characteristics (such as their own DNA and the ability to self-replicate) of independent prokaryotes.
What is the evidence to support endosymbiotic theory?
There is broad evidence to show that mitochondria and plastids arose from bacteria and one of the strongest arguments to support the endosymbiotic theory is that
both mitochondria and plastids contain DNA that is different from that of the cell
nucleus and that they have their own protein biosynthesis machinery.
Which of the following is the strongest evidence for endosymbiotic theory?
The strongest piece of evidence for the endosymbiotic theory is the fact that
mitochondria and chloroplasts have their own circular DNA, prokaryote fashion, and can still replicate, transcribe and translate some proteins
. Their ribosomes are also fashioned as a prokaryotes would be.
Which of the following is not evidence of the endosymbiotic theory?
“
The exterior structure similar to bacterial cell walls
” IS NOT an evidence in favour of the endosymbiotic theory. Both mitochondria and chloroplasts are double membrane bound.
What are 3 pieces of evidence that support the endosymbiosis theory?
Numerous lines of evidence exist, including that
mitochondria and chloroplasts have their own circular DNA (prokaryotes also have circular DNA)
, mitochondria and chloroplasts have a double membrane (the inner membrane would have initially been the ingested prokaryote’s single membrane, and the outer membrane initially …
Which is part of the endosymbiont theory?
The endosymbiotic theory states that
some of the organelles in eukaryotic cells were once prokaryotic microbes
. Mitochondria and chloroplasts are the same size as prokaryotic cells and divide by binary fission. Mitochondria and chloroplasts have their own DNA which is circular, not linear.
What are three main sources of evidence for endosymbiosis?
What are three main sources of evidence for endosymbiosis?
DNA, RNA, Ribosomes and Protein Synthesis
This provided the first substantial evidence for the endosymbiotic hypothesis. It was also determined that mitochondria and chloroplasts divide independently of the cell they live in.
Is endosymbiosis a theory or a hypothesis?
(evolutionary biology) A
theory
suggesting that the organelles such as mitochondria and chloroplasts within the eukaryotic cell came about as a result of the early endosymbiosis between prokaryotic endosymbionts and eukaryotic host cell. Synonym: symbiogenesis.
Which KF The following is the strongest evidence supporting the endosymbiont hypothesis?
Which of the following is the strongest evidence supporting the endosymbiont hypothesis?
Mitochondria have their own and divide independently of the cell.
How does
endosymbiosis
support the idea that eukaryotes share a common ancestor with prokaryotes? Endosymbiosis gives the idea of how eukaryotes/prokaryotes share a common ancestor through mitochondria/chloroplasts (in eukaryotic cells) originated with the bacteria’s of proteobacteria/cyanobacteria.
Which of the following best describes the endosymbiotic theory?
Which of the following best describes an endosymbiont? A cell that lives within another cell. The theory of endosymbiosis best explains:
How eukaryotic cells evolved from a prokaryotic cell engulfing another prokaryotic cell
.
What feature do all cells have?
All cells share four common components: 1) a
plasma membrane
, an outer covering that separates the cell’s interior from its surrounding environment; 2) cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found; 3) DNA, the genetic material of the cell; and 4) ribosomes, …
What is the process of endosymbiosis?
A symbiotic relationship where one organism lives inside the other is known as endosymbiosis. Primary endosymbiosis refers to the
original internalization of prokaryotes
by an ancestral eukaryotic cell, resulting in the formation of the mitochondria and chloroplasts.
Which evidence do you think is the most important for the endosymbiont hypothesis?
The important evidence for the endosymbiont theory is the fact that
the organelles and mitochondria have circular DNA
, where through molecular sequencing, the similarity in the DNA sequences to those early prokaryotes indicate that they were once prokaryotes.
Who came up with the endosymbiotic theory?
Endosymbiosis:
Lynn Margulis
. Margulis and others hypothesized that chloroplasts (bottom) evolved from cyanobacteria (top). The Modern Synthesis established that over time, natural selection acting on mutations could generate new adaptations and new species.
