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Arturiano [62]
1 year ago
12

.tcji No thx I'm fine again

Biology
2 answers:
dsp731 year ago
7 0
Please help me with my question
jasenka [17]1 year ago
5 0
I meed hellp pwease and thank you
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Describe the steps in which a gene in passed from parent to offspring. Make sure to describe how the gene is duplicated, separat
Margarita [4]

Answer:

Mitosis occurs in somatic cells; this means that it takes place in all types of cells that are not involved in the production of gametes. Prior to each mitotic division, a copy of every chromosome is created; thus, following division, a complete set of chromosomes is found in the nucleus of each new cell. Indeed, apart from random mutations, each successive duplicate cell will have the same genetic composition as its parent, due to the inheritance of the same chromosome set and similar biological environment. This works well for replacing damaged tissue or for growth and expansion from an embryonic state. Because the genes contained in the duplicate chromosomes are transferred to each successive cellular generation, all mitotic progeny are genetically similar. However, there are exceptions. For example, there are genetic variations that arise in clonal species, such as bacteria, due to spontaneous mutations during mitotic division. Furthermore, chromosomes are sometimes replicated multiple times without any accompanying cell division. This occurs in the cells of Drosophila larvae salivary glands, for example, where there is a high metabolic demand. The chromosomes there are called polytene chromosomes, and they are extremely large compared to chromosomes in other Drosophila cells. These chromosomes replicate by undergoing the initial phases of mitosis without any cytokinesis (Figure 2). Therefore, the same cell contains thick arrangements of duplicate chromosomes side by side, which look like strands of very thick rope. Scientists believe that these chromosomes are hyper-replicated to allow for the rapid and copious production of certain proteins that help larval growth and metamorphosis

Explanation:

hope this helped!

7 0
2 years ago
Describe two examples of experimental evidence that provide evidence that membrane proteins drift or move over time
aniked [119]

There are so many examples for that in different areas, like TPT1 experiment carried out in our lab recently.Here's one link: http://www.alfa-chemistry.com/tpt1-cas-167218-46-4-item-290583.htm

7 0
2 years ago
I am a cattle egret who lives near a group of cattle. On and near the cattle are tasty insects that I enjoy eating. Whenever the
DanielleElmas [232]

l think it is commensalism-lt is the relationship in which one organism benefits by the other is neither helped nor harmed

plz follow me if it has helped you

and don't forget to mark my answer

7 0
3 years ago
Cells spend most of their time dividing (in other words,in mitosis).<br><br> TRUE OR FALSE
Lapatulllka [165]
It is true that cells spend most of their time dividing. In fact, they spend 78% of their "life" in interphase. 
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3 years ago
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Voluntary muscles are skeletal.
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2 years ago
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