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umka2103 [35]
3 years ago
5

I NEED HELP PLEASE ASAP/Abigail's toaster produces 50 units of heat and 5 units of light for every 100 units of electricity it u

ses. What is the efficiency of her toaster?
5 percent
45 percent
50 percent
55 percent
Biology
1 answer:
Svet_ta [14]3 years ago
8 0
The answer would be 55 percent
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When DNA condenses in preparation for cell division, it is called a __________.
labwork [276]

Answer:

A. chromosome

Explanation:

Chromosomes are typically what you see in a chart like karyotype that shows all the chromosomes of a particular organism. These are the highly condensed structures of DNA during replication which makes it easy to transfer DNA during replication.

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2 years ago
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Lymphocytes are specialized ________________cells.
meriva

lymphocytes are specialized T cell ,B cell, and natural killer cell .

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Why do calculated recombination frequencies between pairs of loci that are located far apart underestimate the true genetic dist
den301095 [7]

Answer:

B. As the distance between loci increases, some multiple crossovers go undetected such that the relationship between recombination frequency and map distance ceases to be linear.  

Explanation:

When calculating recombination frequencies, and hence, map distances, we might notice that these distances are not completely additive. They might vary. <em>For example, let us say that we have three genes, A, B, and C, in that order. </em>We calculated that the <em>distance between A and B equals 5.9</em> MU and that <em>B and C are 19.5 MU apart.</em> According to this, we might say that the <em>total distance between A and C is 25.4 MU (5.9 + 19.5). </em>However, after a<em> two-point calculation between A and C, the value equals 23.7 MU. </em>

The recombination frequency between these two genes located in the extremes and far apart underestimate the actual genetic distances between them because there might occur other crossing-overs that were not detected. This is <em>when calculating the distance between A and C, we probably will not detect the occurrence of a double recombinant between them, and hence, we might sub-estimate the real distance.</em>

The relationship between the actual map distance (number of crossing overs) and the recombination frequency between two loci, is not lineal. The farther apart are the two genes, the worse is the distance estimation.  

8 0
3 years ago
which is an example of an acquired trait? A the ability to hear B the ability to write C color vision D body hair
makkiz [27]
B . ability to write
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emmainna [20.7K]

Answer:

Mass

Explanation:

I'm not for sure but I think its Mass. Please let me know if that was right or wrong.

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