University:
Williams College
Course:
BIOL 202 | Genetics
Academic year:

2024
Views:

431

Pages:

4
Author:

Abrabefreft2uai

b. What pan(s) of the nucleotides make up the� the "laddec''! bo�·t s . �- c. What parts of the nucleotides make up the sides (backbone) of the "ladder"? ) sl,{_ j� � pb-vsp�..fe d Look at the bottom an -0p-0f-t-l:i�"ladder" in Model 1. Are the rungs parallel (the ends of the strands match) r antiparallel (t } ends o� t�e strands ar oppa,sites)? . r A 1./l 011-i . 3. 5L-1 9 ru)f � 14. This type of replication is called s�i-conservative replication. Considering the meaning of these words (semi-half; conserve-to keep), explain why DNA replication is called semi-conservative. of/ 15. DNA molecules can be tens of thousands of base pairs in length. Mistakes in DNA replication lead to mutations, which may or may not be harmful to an organism. How does semi-conservative 1-�ion �?]ve "bJ/:: rs du� --0Z 0rp I°' k L vp L. eJ 50 r;��icatio� .ex 0L f (J 1- � . 0U\ 5 .� +-Ix b�- s (' 'j -<'. c!r <--1JAI1. : s CJGU p0-1 r I ,/\'1 16. The proportions of the bases are consis t withi&..alspecies; however they do vary between../ species. Using the base-pair rules, complete the following table to show the percentage of each type of base in the five different organisms. Organism Human Cow Percentage of each type of base Adenine 31 28 Salmon ;;>0 Wheat 27 Yeast 31 Guanine /9 22 :J I 8� 19 Cytosine 19 Thymine 71 ;)? �cf" ?3 ;J? 21 { °( 29 �,