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vlabodo [156]
3 years ago
5

What affect does modern transportation have on emerging viruses?

Biology
1 answer:
zaharov [31]3 years ago
5 0

Answer:

The efficiency, speed and reach of modern transport networks puts people at risk from the emergence of new strains of familiar diseases, or from completely new diseases.

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A student analyzed a viral genome and found that the genome had the following nucleotide composition. 28% adenine 20% thymine 35
egoroff_w [7]

Answer: Option A) Double-stranded DNA

Explanation:

First, the presence of thymine infers that the genome is DNA.

Then, to determine whether it is single or double stranded, we check if the sum of all nitrogenous bases is equal to 100%

A + C + G + T = 100%

28% + 35% + 20% + 17% = 100%

Since all bases makes 100%, we can conclude that the genome is a double stranded DNA

7 0
3 years ago
Read 2 more answers
Humans autosomal cells have two copies each of 23 unique chromosomes. Match each cell division event and cell type according to
lions [1.4K]

Answer:

Spermatozoa: 23 chromatids

Ootid: 23 chromatids

Anaphase of mitosis: 92 chromatids

Oogonium prior to S phase: 46 chromatids

Explanation:

1) Spermatozoa, also known as sperm cell is a haploid gamete (n) that results from the meiotic division of a dipoid reproductive cell. Since there are 23 pairs of chromosomes or 46 chromosomes in human somatic cells, there will be 23 chromosomes in the spermatozoa. Also, meiotic division occurs twice and separates sister chromatids in meiosis II. Hence, spermatozoa will contain 23 chromosomes (n) with 1 chromosome each i.e. 23 chromatids

2) Ootid is a haploid cell that arises from the second meiotic division of a secondary oocyte. A primary oocyte, with 46 chromosomes/92 chromatids, undergoes meiosis I to produce secondary oocyte with 23 chromosome/46 chromatids, which in turn undergoes meiosis II to produce ootid with 23 chromosomes/23 chromatids (each chromatid is an individual chromosome).

3) Mitosis is the cell division that produces two identical diploid (2n) daughter cells. Note that, 46 chromosomes get replicated to form 92 chromatids. In the anaphase stage of mitosis, sister chromatids get pulled apart to opposite poles but still remain in the cell as cytokinesis is yet to occur.

4) Oogonium is the diploid (2n) cell that gives rise to primary oocyte via mitosis. Prior to the S phase where chromosomes replication occurs, Oogonium cell will contain 46 chromosomes and 46 chromatids.

4 0
4 years ago
Scientist communicate the details of experiments so that
Doss [256]
So that other people can replicate the experiment.
if someone does an experiment and finds something interesting, they might publish the details of the experiment, so that other scientists may replicate it and verify that the experiment is real.
4 0
3 years ago
Which statements can be made about mass and weight? Check all that apply.
FromTheMoon [43]
Weight can be measured in pounds
Bowling ball weights more than a basketball
weight can be measured with a scale

would be the options I presume to be correct, hope I helped. I used common knowledge to answer those.
6 0
3 years ago
Read 2 more answers
Traditional ecological knowledge is A. rarely shared in local languages B. not well known in the West because some species and e
Alex73 [517]

Answer:

Option-C

Explanation:

Traditional ecological knowledge is the knowledge acquired and adapted by the local or native people living in a particular area.

The traditional knowledge is gained by the holistic approach of gaining the knowledge that is which benefits survival and increases the chances of well being.

The approach aims at learning by making direct contact with the surrounding environment, learning its ways, understanding the relationship between the various factors and then adapting to the condition and utilizing the available information.

The traditional way aims at looking at the environment in whole but the modern way of understanding the environment aim by learning the environment in the components.

The traditional knowledge is always shared by the local people in their local language but since the ideology of gaining the knowledge differ in both the ways and TEK is shared in local language therefore sometimes the knowledge does not prove useful in the contemporary world.

Thus, Option-C is correct.

3 0
3 years ago
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