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Chapter 23: Q. 5 (page 606)

Which characteristic is shared by prokaryotes and eukaryotes?

  1. cytoskeleton
  2. nuclear envelope
  3. DNA-based genome
  4. mitochondria

Short Answer

Expert verified

Both prokaryotes and eukaryotes have a DNA-based genome. Hence, the correct answer is option c.

Step by step solution

01

Introduction -

In the eukaryotic cells, the nucleus is present within the nuclear envelope and DNA is found in the nucleus. In the prokaryotic cells, the nucleus is absent and DNA is present in the cytoplasm.

02

Explanation -

Option a. cytoskeleton - It is present in eukaryotes only.

Option b. nuclear envelope - It is present in eukaryotes only.

Option d. mitochondria - It is present in eukaryotes only.

Hence, the options (a), (b), and (d) are incorrect.

Option c. DNA-based genome - Both prokaryotic and eukaryotic cells have a plasma membrane, cytoplasm, DNA-based genome, and ribosomes. So, the correct answer is option c.

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Most popular questions from this chapter

Some aspects of eukaryotes are more similar to Archaea, while other aspects of eukaryotic cell composition appear more closely related to Bacteria. Explain how endosymbiosis could resolve this paradox.


What evidence is there that mitochondria were incorporated into the ancestral eukaryotic cell before chloroplasts?

Alternation of generations describes which of the following?

a. The haploid form can be multicellular; the diploid form is unicellular.
b. The haploid form is unicellular; the diploid form can be multicellular.
c. Both the haploid and diploid forms can be multicellular.
d. Neither the haploid nor the diploid forms can be multicellular.

In 2016, scientists published the genome of Monocercomonoides, and demonstrated that this organism has no detectable mitochondrial genes. However, its genome was arranged in linear chromosomes wrapped around histones which are contained withinthe nucleus. Monocercomonoides is therefore a(n) _________.
a. Bacteria
b. Archea
c. Eukaryote
d. Endosymbiont

Opisthokonta includes animals and fungi, as well as protists. Describe the key feature of this phylum, and an example of how an organism in each kingdom uses this feature.
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