A birth defect in which the spinal cord protrudes out of the vertebral column at birth is called ________

a. anencephaly
b. fetal alcohol syndrome (FAS)
c. spina bifida
d. cleft palate


c

Biology & Microbiology

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Answer the following statements true (T) or false (F)

1. DNA polymerase is a protein used in many biotechnology methods that cuts DNA sequences into fragments that can then be pasted into vectors. 2. The method of the polymerase chain reaction (PCR) is used to make enough exact copies of DNA for researchers to use in analysis. 3. Preimplantation genetic diagnosis uses DNA testing to examine the genes in sperm, egg, or embryo cells. 4. The desired outcome of human gene therapy is to find substitute genes from other organisms to cure a disease condition. 5. If farmers use glyphosate-resistant crops, they can spray their fields with a herbicides and it will not harm the plant.

Biology & Microbiology

Endocrine glands produce

a. enzymes. b. oils. c. waxes. d. hormones. e. milk.

Biology & Microbiology

In most eumetazoans, the innermost tissue layer during development is the ____

a. mesoderm b. epiderm c. mesoglea d. endoderm e. ectoderm

Biology & Microbiology

If the number of chromosomes in an animal's gametes is 20, then a somatic cell from that animal

would contain ____ chromosomes.

a. 5 b. 10 c. 20 d. 40 e. 80

Biology & Microbiology