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Ymorist [56]
3 years ago
7

Family and twin studies examining the rates of autism spectrum disorder have provided compelling evidence for a genetic influenc

e in the development of the condition. in fact, the concordance rate of autism spectrum disorder was ______ in identical twins
Biology
1 answer:
TEA [102]3 years ago
5 0

In fact, the concordance rate of autism spectrum disorder was twice in identical twins that of non-twin siblings.

It has been shown that genetic has a huge influence on the development of autism spectrum disorder and that autism in identical twins was 13 times that of the general population. This suggest that environmental factors in the womb are the major factors that contribute.


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A different DNA ladder from NEB (Cat #N3200L) comes as 500 uL of a 1000 ug/mL solution and is not pre-mixed with the 6 X DNA loa
JulijaS [17]

Answer:

4 ul Loading Buffer + 19.70 ul dH2O + 0.30 ul DNA Ladder

Load 12 ul on the gel.

Explanation:

DNA Ladder concentration = 1000 ug/ml

1000 ug DNA in 1 ml DNA Ladder solution →    150 ng DNA = 0.15 ug DNA in..... 0.00015 ml = 0.15 ul DNA Ladder solution

6x DNA Loading Buffer → it has to be diluted by an equal volume 6 times (1 ul LB + 1 ul distilled H2O)

An appropriate volume to load on an average agarose gel is 12 ul, so:

2 ul Loading Buffer + 9.85 ul dH2O + 0.15 ul DNA Ladder = 12 ul

But since 0.15 ul is a very small volume and mistakes could be made while measuring it, let's make double:

4 ul Loading Buffer + 19.70 ul dH2O + 0.30 ul DNA Ladder = 24 ul

And load half of that solution (12 ul) on the gel.

5 0
3 years ago
What is the purpose of the enclosed seeds in a fruit found on a flowering plant
baherus [9]
The seeds are enclosed because it's the plants way of protecting them.
5 0
3 years ago
Which of these types of weathering requires the presence of water?
serg [7]

Answer:

A. Abrasion

Explanation:

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<em>-Lumen Learning</em>

8 0
3 years ago
Which cellular structures are found in plant cells but NOT in animal cells?
Anestetic [448]
a. chloroplast and cell wall

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4 0
3 years ago
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Answer:

D) the sum of all physical properties of a substance

4 0
3 years ago
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