Genetic Experiment Control: Estimating MK Genes per Cell
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Questions and Answers

What types of restriction enzymes were used to digest the liver DNA from mouse 23-2?

Restriction enzymes that cut pMK twice (Bst EII, Eco RI, Pvu II), once (Bam HI, Bgl II, Kpn I), or not at all (Hind III, Xba I).

What was used as a probe in the hybridization process after electrophoresis?

A pMK(-EK) nick-translated probe.

What are the major bands in the Pvu II digests of liver, testis, and muscle DNA from mouse 23-2?

The major bands are restriction fragments predicted from the endogenous MT-I gene and from cleavage within the repeats of pMK.

What is illustrated in Figure 4 of the text?

<p>Models for Integration of pMK DNA into Mouse DNA.</p> Signup and view all the answers

How was the major bands inset obtained in the experiment?

<p>The major bands inset was obtained after a 14 hr exposure compared to 60 hr for the main figure.</p> Signup and view all the answers

Which of the following is a likely reason for using phage λ DNA digested with Hind III as a size marker?

<p>It provides a well-characterized set of fragment sizes for comparison.</p> Signup and view all the answers

What is the likely purpose of using the MT-I gene plasmid m1pEE3.8 as a size marker?

<p>To provide a set of restriction fragments with known sizes for size estimation.</p> Signup and view all the answers

Based on the text, what technique was likely used to determine the mRNA levels of the MT-I gene?

<p>Northern blotting</p> Signup and view all the answers

Which of the following statements is most likely true based on the information provided?

<p>The MT-I gene encodes a protein involved in metal ion homeostasis.</p> Signup and view all the answers

Which of the following techniques was likely used to introduce the Xenopus 5S RNA gene into mouse oocytes?

<p>Microinjection</p> Signup and view all the answers

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