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nikklg [1K]
3 years ago
10

Describe how you would determine if the cells of a newly discovered organism were prokaryotic or eukaryotic

Biology
2 answers:
alekssr [168]3 years ago
8 0
Prokaryotic cells have no nucleus 
Shkiper50 [21]3 years ago
3 0
<span>You can determine if a newly discovered organism was prokaryotic or eukaryotic by determining if it has a nucleus. If it has a nucleus and membrane bound organelles, then it's eukaryotic. If not, then it's prokaryotic.

</span>
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The diploid number of chromosomes in the mustard plant, Arabidopsis thaliana, is 10. Knowing this, answer the following question
lukranit [14]

Answer:

10 chromosomes/sister chromatids

Explanation:

Prophase is the first stage of cell division (mitosis). Prior to the cell entering the actual division stage, it undergoes a phase where it prepares its content and most importantly undergo the duplication of its genetic material (DNA). This DNA are found as chromosomes. It undergoes replication of its DNA in the S-phase of interphase stage.

Since Arabidopsis thaliana has 10 chromosomes, and each chromosome holds one DNA molecule, 10 molecules of DNA will be present in the mustard plant's genome. These 10 molecules of DNA will be replicated on another copy of chromosome which is identical to the template. This chromosomes are called SISTER chromatids i.e. replicated chromosome. Each sister chromatids are held together at the centromere and are considered one individual chromosome until they separate during anaphase stage.

Hence, at the Prophase stage, before separation, each sister chromatid (replicated chromosome) is considered as one chromosome. Thus, in the mustard plant with 10 chromosomes, it will possess 10 sister chromatids or chromosomes at the Prophase stage.

N.B: When sister chromatids separate during anaphase stage, they will be regarded as individual chromosomes.

6 0
3 years ago
Which process is an important part of chemical weathering through oxidation? (1 point)
Anarel [89]

Answer:

Explanation:

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6 0
3 years ago
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How is natural selection similar to selective breeding? How is natural selection different from selective breeding?
shusha [124]

Answer:

Natural selection and selective breeding can both cause changes in animals and plants.the difference between the two is that natural selection happens naturally, but selective breeding only occurs when humans intervene. for this reason selective breeding is sometimes called artificial selection.

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Saclike photosynthetic membranes found in chloroplasts.
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thylakoids
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