A procedure that places an oocyte and sperm in a culture dish, allows a few cell divisions, and then places the resulting very early embryo in the oocyte donor's uterus is
A) IVF.
B) intrauterine insemination.
C) surrogate insemination.
D) GIFT.
A) IVF.
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A skin snip is performed, and microfilariae with tapered tails, no nuclei, and unsheathed are microscopically observed. The recommended therapy for this infection is:
a. ivermectin. b. diethylcarbamazine. c. antihistamines. d. mebendazole.
The chi-square value is the sum for all progeny classes of (observed-expected)2/expected. Using the chi-square test for goodness of fit, calculate the chi-square value to test the null hypothesis that genes C and D are unlinked. What is the chi-square value?
A dihybrid testcross is made to determine if genes C and D are linked. The results are shown in the table.
A) 0
B) 0.0576
C) 10.8
D) 14.4
E) cannot be determined
After a baby is delivered, what else is expelled from the female's uterus?
a. placenta b. uterine lining c. primary oocytes d. oxytocin e. corpus luteum
C4 plants divide photosynthesis between two types of cells: the mesophyll and the ________ cells
Fill in the blank(s) with correct word