Biology, Eighth Edition (Raven)

Objective: Identify new methods to increase the probability of successful implantation and development of human embryos via in-vitro fertilization.

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1.		What is the name give to the method of assisted reproduction where sperm and egg are joined in a laboratory dish and then implanted as an embryo into the uterus?
			A)	Cloning
			B)	Recombinant DNA technique
			C)	In vitro fertilization
			D)	Artificial insemination
2.		Which of the following is not connected to premature birth?
			A)	underdeveloped lungs
			B)	large birth weight
			C)	poor visual development
			D)	cerebral palsy
3.		Statistically, who is at greater risk of death due to premature birth?
			A)	Single births
			B)	Twins
			C)	Triplets
			D)	They all have equal probability of death.
4.		In this presented research, what is unique about the methods employed?
			A)	The embryos are implanted much earlier into the uterus to face less rejection.
			B)	The uterus is given a solution that makes it more receptive to implantation.
			C)	Two solutions are used for the embryos to grow in, one that mimics the fallopian tube, the other the uterus.
			D)	The embryo’s are suspended in a nutrient covering that is included in the implantation process.
5.		What is the name give to embyro’s that have undergone several cell divisions and are more likely to implant into the uterine wall?
			A)	morula
			B)	fetus
			C)	neuroblast
			D)	blastocyst