If a pedigree of several generations shows only females affected by a particular trait, it cannot be a(n) ____ trait
a. autosomal recessive
b. autosomal dominant
c. Y-linked
d. X-linked recessive
e. X-linked dominant
c
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Nonfilamentous bacteriophage often can escape its host without lysing, whereas filamentous phage normally induce cell lysis once replicated inside their host
Indicate whether the statement is true or false.
Our agricultural practices lead to an expansion of the genetic diversity of crop plants
A. true B. false
There are three genes located in the gene order A-B-C on a chromosome. Would you expect the recombination frequency to be higher between A and B or A and C?
What will be an ideal response?
Figure 15.4
In step 2 (above) in the identification of the colony that contains a targeted gene, ____.
A. bacterial cells are cloned B. bacterial colonies are transferred C. bacterial cells are ruptured D. DNA is lysed E. cells with the targeted gene are identified