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babunello [35]
4 years ago
7

What is the best definition of a eukaryotic cell?

Biology
1 answer:
Rainbow [258]4 years ago
3 0
An organism whose cells contain a nucleus surrounded by a membrane and whose DNA is bound together by proteins ((histones)) into chromosomes. The cells of eukaryotes<span> also contain an endoplasmic reticulum and numerous specialized organelles not present in prokaryotes, especially mitochondria, Golgi bodies, and lysosomes.</span>
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Why do artificial plant-growth light have a light spectrum that favor the blue and red portions of the Spectrum?
UNO [17]
It's because the main photosynthesis component (Chlorophyll) mostly absorbs red and blue portions. It reflects the green portions which is why most plants are green
5 0
3 years ago
Two brothers have X‑linked red–green colorblind vision, and their parents have normal color vision. The first brother's karyotyp
zhenek [66]

Answer:

The answer is mother in meiosis II

Explanation:

nondisjunction can be defined as the failure of the segregation of the child chromosomes in meiosis I and meiosis II resulting in gametogenes. This results in abnormal gametes with some chromosomal imbalance being formed and subsequent fertilization of these gametes results in a generation of abnormal individuals.

According to exercise, red-green color blindness follows an X-linked recessive pattern and the phenotype is only expressed. the father cannot bring the possibility of color blindness to his children, and the nondisjunction, defined earlier, cannot occur in either meiosis I or meiosis II. As a conclusion we can say that it may have a place in meiosis I or meiosis II corresponding to the mother and although the mother's condition may be normal, the first child would be compromised with color blindness, therefore, the mother is the carrier.

3 0
4 years ago
Describe the importance of the cell cycle ?
egoroff_w [7]

Explanation:

The way the Cell cycle works helps us keep us alive as long as usually do. An example is when you bite your cheek, you may kill some cells by it but your alive cells will replace them by creating more. Now without the cell cycle here's what would happen, You bite your cheek and your cells die forever causing your mouth to be dryer, weaker and to lack enzymes ( enzymes help brake down your food and ready it to go threw your digestive system ) So imagine every time you get hurt and your cells just keep dying without being reborn that's like as if everyone stopped creating children eventually the human race would end, If the cell cycle does not do its job eventually you will get weak and die. that's why the Cell Cycle is important to any living things well being especially if its Multicellular.

                          Hope this helps! <3

3 0
3 years ago
Which type of selection leads to increased phenotypic and genetic variation? directional selection disruptive selection stabiliz
kkurt [141]
The correct answer for the question that is being presented above is this one: "A. a video that shows a large river that has penguin populations on both sides."

Here are the following choices:
<span>A. a video that shows a large river that has penguin populations on both sides
B. a video that shows penguin species that have different mating dances
C. a video that shows a penguin that is laying eggs
D. a video that shows penguins in a tidal pool and an open ocean</span>
4 0
3 years ago
What occurs after cytokinesis is completed?
kondaur [170]
After cytokinesis is completed, the cell enters into G1 Phase.
4 0
3 years ago
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