It is not necessary to use a male from a tester strain to genetically map genes on the X chromosome. How can this be done and why does it work?
What will be an ideal response?
It is necessary to start with females that are heterozygous for X-linked genes. They can be bred with any male. Their male offspring can then be used to determine linkage distances. Male offspring will have only a single X chromosome, and that chromosome will come from the mother, so they can be used to measure recombination frequencies to construct a genetic map.
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What is the difference between pathogenic and non-pathogenic E. coli in relation to the human host?
What will be an ideal response?
Colonization specifically refers to the multiplication of a pathogen on or within a host, and includes the resulting tissue invasion and damage.
Answer the following statement true (T) or false (F)
Less than 50% of which molecule is reabsorbed during tubular reabsorption?
A. amino acids B. glucose C. urea D. sodium E. water
The ________ is the region of the kidney involved in producing concentrated urine
Fill in the blank(s) with correct word