Bio genetics lab 2 questions help



(doubt 1 and 4 in misentry bisect. )

* It would be accurate if you can hinder my confutationes too.



Tube Pattern Lane

1 1 kb DNA ladder 1

2 Mother's DNA 2

3 Child's DNA 3

4 A.F. #1 DNA 4

5 A.F. #2 DNA 5




Record the interval each ladder ligature moved from the courteous in mm parallel succeeding a while the largeness of the DNA trash in that ligature in bp units, naturalized on the bp dedicated in tread 19 , in your Lab Notes.


Lane 1:


1,000 bp 34 mm

900 bp 36 mm

800 bp 38 mm

700 bp 40 mm

600 bp 43 mm

500 bp 47 mm

400 bp 51 mm

300 bp 56 mm

250 bp 60 mm

200 bp 64 mm

150 bp 69 mm

100 bp 77 mm

50 bp 90 mm



Lane 2:


37 mm 850bp

59 mm 265bp



Lane 3:


37 mm 850bp

44 mm 575bp


Lane 4:


41 mm 670bp

43 mm 600bp


Lane 5:


44 mm 575bp


55 mm 320bp


Experiment: Agarose Gel Electrophoresis of DNA Fragments

Lab Results

  1. List the intervals wanderinged in mm for the ligatures in the DNA ladder in the consultation under.
    Remember, trivialer trash wandering farther than longer ones, so the top-most ligature gain be the 1,000 bp largenessd DNA trash when-in-fact the bottom-most ligature gain be the 50 bp largenessd DNA trash.


    DNA Ladder
    BandDistance (mm)
    50 bp 90 mm
    100 bp 77 mm
    150 bp 69 mm
    200 bp 64 mm
    250 bp 60 mm
    300 bp 56 mm
    400 bp 51 mm
    500 bp 47 mm
    600 bp43 mm 
    700 bp40 mm 
    800 bp38 mm 
    900 bp36 mm 
    1,000 bp34 mm 


  2. Whose pattern had the closely 570 bp and 320 bp largenessd DNA trash?
  3. What were the largenesss of the DNA trash for alleged senior #1?

Data Analysis

  1. Which largeness DNA remnant did the offshoot possess from her dame?
  2. Which alleged senior, if any, can be definitively ruled out as the offshoot's biological senior?


  1. How are new molecules of DNA synthesized in assistance cells?
  2. What is the operation of DNA?


    DNA has genetic counsel that regulates our cells. So, DNA is enjoy a blueprint that shows how to compose components of cells enjoy proteins and ribonucleic shrill (RNA). This counsel is carried down to newer generations through possessance.

  3. If each separate has such a trivial equality of DNA in their cells, how do the ligatures on the gel hold plenty DNA to be distinguishable?
      In ordain to gain DNA distinguishable. The Gel has to be soaked in a dye (ethidium bromide) to confine succeeding a while the DNA and rinsed off succeeding. Ethidium bromide helps to gain DNA distinguishable by fervid brightly in UV rays.
  4. Humans merely entertain a few eye colors and merely indelicate ABO-naturalized order marks. How can DNA tests definitively test separates when abundant mob entertain brown eyes or mark A order?
  5. Suppose a slight hair was institute in a victim’s home. A gel is set up succeeding a while the DNA trash of two reported criminals in lanes 4 and 5, the DNA trash of the slight hair in lane 3, and the victim’s DNA trash, as a disclaiming regulate, are in lane 2. A DNA ladder is in lane 1. The resulting gel is under. Which imagine, if any, committed the offense? Explain your confutation.

     Lane 4,5 (two reported criniminals)