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Lady bird [3.3K]
3 years ago
6

Simplify 3.2-5.1n-3n+5

English
1 answer:
Law Incorporation [45]3 years ago
4 0
3.2 - 5.1n - 3n + 5 = 3.2 + 5 - 5.1n - 3n = 8.2 - 8.1n
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Consider Amy Tan’s essay “Mother Tongue” as well as the video you watched about code-switching. Identify and evaluate two exampl
AleksandrR [38]
Two examples of code-switching are when Tan speaks "incorrect" or "broken" English to her mom in the first personal anecdote (when she tells her mom not to buy something), and when Tan realizes that the English she's using for a literary event is strange to use in front of her mother. 

This code-switching reflects Tan's complex upbringing and Asian-American background, because, unlike many people who don't come from immigrant families or who don't speak several languages, she was acutely aware of certain sociolinguistic systems from an early age. For example, although Tan's mother's English makes sense to her, Tan would have to talk for her mother in several situations in order to be understood, to be taken more seriously, or even to be treated fairly. 
5 0
3 years ago
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Based on the reading of for Esme with love and squalor identify and describe what specific textual details reveal about a charac
mestny [16]

Answer:

Can you specify what text you are looking for?

Explanation:

Can you specify what text you are looking for?

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3 years ago
Which do you regard as Crevecoeur's most compelling observation in the first paragraph? Why?
puteri [66]

Answer:

The most convincing consideration made by the author is that in America there was freedom, since no individual was responsible for maintaining aristocrats and nobles. Each person was only responsible for himself and worked to enrich himself, something that the English could not do.

Explanation:

Letters from an American Farmer is a series of texts written by J. Hector St. John de Crèvecœur. The texts are written in a letter format where the author reasons about the exploitation of america, american identity, the advantages that america has and even slavery.

The third letter is entitled "what is an American?" where the author replies that to be an American is to have freedom and autonomy. He reinforces this argument by informing that in Europe, people do not have freedom and autonomy, because they are trapped by an aristocracy that they need to maintain. In that case, workers do not work to enrich themselves, but rather their princes. This does not exist in America, where each individual is not responsible for any noble person, but for himself and works for his own success.

8 0
3 years ago
Explain the role of chromosomes, DNA and genes in the formation of phenotypes in an organism.
irina [24]

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 (Gilbert, 2008).

Gene Transmission in Meiosis

Three photomicrographs show polytene chromosomes. The chromosomes look like horizontal tubes composed of white, grey, and black bands against a black background. They look like thick, striated lengths of rope.

Figure 2: Examples of polytene chromosomes

Pairing of homologous chromatids results in hundreds to thousands of individual chromatid copies aligned tightly in parallel to produce giant, "polytene" chromosomes.

© 2007 Nature Publishing Group Novikov, D. et al. High-pressure treatment of polytene chromosomes improves structural resolution. Nature Methods 4, 483 (2007). All rights reserved. View Terms of Use

Although he did not know it, Walther Flemming actually observed spermatozoa undergoing meiosis in 1882, but he mistook this process for mitosis. Nonetheless, Flemming did notice that, unlike during regular cell division, chromosomes occurred in pairs during spermatozoan development. This observation, followed in 1902 by Sutton's meticulous measurement of chromosomes in grasshopper sperm cell development, provided definitive clues that cell division in gametes was not just regular mitosis. Sutton demonstrated that the number of chromosomes was reduced in spermatozoan cell division, a process referred to as reductive division. As a result of this process, each gamete that Sutton observed had one-half the genetic information of the original cell. A few years later, researchers J. B. Farmer and J. E. S. Moore reported that this process—otherwise known as meiosis—is the fundamental means by which animals and plants produce gametes (Farmer & Moore, 1905).

The greatest impact of Sutton's work has far more to do with providing evidence for Mendel's principle of independent assortment than anything else. Specifically, Sutton saw that the position of each chromosome at the midline during metaphase was random, and that there was never a consistent maternal or paternal side of the cell division. Therefore, each chromosome was independent of the other. Thus, when the parent cell separated into gametes, the set of chromosomes in each daughter cell could contain a mixture of the parental traits, but not necessarily the same mixture as in other daughter cells.

To illustrate this concept, consider the variety derived from just three hypothetical chromosome pairs, as shown in the following example (Hirsch, 1963). Each pair consists of two homologues: one maternal and one paternal. Here, capital letters represent the maternal chromosome, and lowercase letters represent the paternal chromosome:

Pair 1: A and a

Pair 2: B and b

Pair 3: C and c

When these chromosome pairs are reshuffled through independent assortment, they can produce eight possible combinations in the resulting gametes:

A B C

A B c

A b c

A b C

a B C

a B c

a b C

a b c

Hope This Helps!!!

6 0
3 years ago
The Essay suggest that life is more important than work. The essay suggest that family is more important than work.
Ratling [72]

Answer:

The essay suggest that life and family is more important than work.

5 0
3 years ago
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