The following shows the DNA recognition sequences for three restriction enzymes:

BglII: Sau3AI: BamHI:
5’...A^GATCT...3’ 5’...^GATC...3’ 5’...G^GATCC...3’
3’...TCTAG^A...5’ 3’...CTAG^...5’ 3’...CCTAG^G...5’

(A) You are working with a short linear double-stranded DNA fragment that has the sequence shown below. Make boxes that encompass the binding sites for each enzyme, and label them:

5 '3'
3 '5'

(B) How many fragments do you expect if you cut with BgII alone?
(C) Write out the sequences of each double-stranded fragment you will get after cutting with BamHI, Make sure to label the 5' and 3' ends of each strand of your fragments.
(D) How many fragments do you expect if you cut with BglII alone? How many fragments do you expect if you cut with Sau3AI alone? How many fragments do you expect if you cut with BamHI and BglII?

Sand spinifex grass is adapted to growing on sand dunes. it is a rapidly spreading plant and the creeping runners produce new root systems. which of these best explains the benefits of these features? a. it limits water loss through the leaves. b. it provides support by anchoring the plant. c. it protects the plant from predators. d. it allows the plant to tolerate salt. reset submit

Compare and contrast region e in the illustration above with region d. describe the physical characteristics of each region.

Bisphenol a (often called bpa) is a chemical found in products that people use every day, from water bottles to food containers to children's toys. unfortunately, bpa leaches out of its many products and makes its way into our bodies. what are the health effects of bpa exposure? ongoing research is finding that elevated exposure to bpa can affect a wide variety of developmental and physiological processes, but one of the first studies of bpa's health effects came about because of a simple mistake in the lab. at a laboratory at case western reserve university in 1998, geneticist patricia hunt was making a routine check of her female lab mice. as she extracted and examined developing eggs from the ovaries, she began to wonder what had gone wrong. she noticed that many of the eggs showed problems with their chromosomes, and some had irregular amounts of genetic material, which can lead to miscarriages and birth defects in mammals. she learned that a lab assistant had mistakenly washed the plastic mouse cages and water bottles with a harsh soap, releasing bpa from the plastic. knowing that bpa is an endocrine disruptor, a chemical that can enter organisms and mimic hormones, hunt set out to discover whether it had adversely affected her mice.