Table 81 $\text { Culture } 1: \mathrm{F}^{+} \text {, leucine }{ }^{+} \text {, histidine }{ }^{+}$

question 36

Multiple Choice

Table 8.1
$\text { Culture } 1: \mathrm{F}^{+} \text {, leucine }{ }^{+} \text {, histidine }{ }^{+}$
$\text { Culture 2: } \mathrm{F}^{-} \text {, leucine-, histidine- }$
-In Table 8.1, what will be the result of conjugation between cultures 1 and 2?

• A) 1 will become F- , leu- , his- ;
• 2 will remain the same
• B) 1 will remain the same;
• 2 will become F+, leucine- , histidine-
• C) 1 will become F- , leu+, his+;
• 2 will become F+, leu- , his-
• D) 1 will remain the same;
• 2 will become F+ and recombination may occur
• E) 1 will remain the same;
• 2 will become F+, leu+, his+

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Definitions:

DNA

A double-stranded molecule consisting of nucleotides arranged in a helical structure, serving as the hereditary material in most organisms.

Purines

Nitrogenous bases found in DNA and RNA that include adenine (A) and guanine (G), playing a crucial role in encoding genetic information.

Pyrimidines

One of the two types of nitrogenous bases found in nucleic acids, including cytosine, thymine (in DNA), and uracil (in RNA).

Chargaff

Refers to Chargaff's rules, which are empirical rules regarding the ratios of nucleotide bases within DNA molecules: adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G).