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topjm [15]
3 years ago
5

Organisms whose cells do not contain a well-defined nucleus are

Biology
1 answer:
Vikki [24]3 years ago
7 0

Organisms whose cells do not contain a well-defined nucleus are  placed in the kingdom Fungi is false.

False.

<u>Explanation:</u>

Fungi are eukaryotes that contain many membrane-bound organelles and a nucleus. The Fungi kingdom consists of many living organisms though fungi are more plant-like organisms but are closely related to animals.

Fungi are generally heterotrophic because they use the organic compound for a source of energy.

Many fungi produce haploid cells that undergo mitosis to become multicellular. They play an important role in the ecosystem because they break down organic plus inorganic materials into molecules.  

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Mitochondria and chloroplasts
Grace [21]

Answer:

C. prokaryotic cells

Definitions

The Mitochondrion is an organelle in the cytoplasm of cells that functions in energy production.

Chloroplast is usually defined as a plastic containing chlorophyll.

Chlorophyll is the green coloring matter of leaves and plants, essential to the production in a bluish-black form, C55H72MgN405 (chlorophyll a), and a dark-green form, C55H70MgN4O6 (chlorophyll b).  

A root cell is one of the maestro cells in the human organic structure that has possible ability of turning into any of the more than the organic structure's 200 cell types.  

Prokaryotes is any cellular organism that has no nuclear membrane, no organelles in the cytoplasm except ribosomes, and has its genetic material in the form of single continuous strands forming coils or loops, characteristic of all organisms in the kingdom Monera, as the bacteria and blue-green algae.

<h2>What are the similarities and differences between prokaryotes, mitochondria, and chloroplasts?</h2>

Both mitochondria and heterotrophic prokaryotes, as well as chloroplasts and autotrophic prokaryotes, have a genetic structure (DNA with a circular double helix shape and the genes themselves), as well as comparable ribosome types. In reality, the endosymbiotic idea is based on these parallels.

5 0
2 years ago
Both Duchenne muscular dystrophy and color blindness are caused by recessive alleles. DMD, unlike color blindness, nearly always
Ronch [10]

Answer: Although both are X-linked recessive conditions, and therefore more likely in males, with the single X-chromosome. The recessive allele in colour blindness occurs at a higher frequency in the population and is a mild condition. Thus colour blindness does occur to a lesser extent in females because it needs the double recessive condition. DMD is a severe, disabling condition with a limited lifespan, and recessive allele frequency much lower, so the double recessive condition in females is very rare.

Explanation: DMD is an X-linked recessive, “nearly always in males” suggest that it also occurs due to a new mutation or some rare condition e.g. double recessive from an affected father and carrier mother, or inactivation of the normal gene in a heterozygote. It is also found that the defective allele is not completely recessive and that female carriers may exhibit mild to moderate effects.

colour blindness is polygenic, although the genes are all X-linked. It is more common in males than females. Females can carry two recessive alleles and so express the phenotype, but this is uncommon because the frequency of the recessive gene is low.

There are similarities in that both are X-linked recessives, therefore commonly expressed in males, who only have one X chromosome. The gene frequency of the colour blindness recessive is much higher than that of DMD, so the double recessive condition, which affects females, is more likely to be seen with colour blindness. In addition, DMD is a severe condition associated with disability and limited lifespan, which reduces the probability of mating between an affected male and carrier female

6 0
3 years ago
2 Points<br> How does natural selection lead to evolution?
Lesechka [4]
Because through natural selection, only the fittest survive. when the fittest come together and reproduce then the species continues and evolves with only the fittest and strongest genes.
7 0
3 years ago
Read 2 more answers
Genesis that forms from high-grade region of heat and pressure example of steps in ____ cycle
Nastasia [14]

Answer:

tectonic cycles

Explanation:

the house in question was

7 0
3 years ago
What direction does energy transfer when it stops
Marina CMI [18]

Answer:

The direction of energy transfer is ALWAYS from hot --> cold.

Explanation:

hope it helps

4 0
2 years ago
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