Which of the following statements is true?
a) Genetic engineering offers no benefits to farmers.
b) A genetically modified organism (GMO) is one that has lost one or more genes naturally.
c) Scientist have been able to successfully produce medicines by genetic engineering.
Answer: c) Scientist have been able to successfully produce medicines by genetic engineering.
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Despite viruses require a living host's metabolism to replicate, it remains unclear whether viruses existed before living cells
Indicate whether the statement is true or false.
An F1 organism is always homozygous
Indicate whether the statement is true or false.
Watson and Crick used evidence from several studies to determine the structure of DNA. What conclusion were they able to draw from Rosalind Franklin's X-ray diffraction data, specifically?
A) DNA consists of four types of nucleotide bases: A, T, C, and G. B) DNA nucleotides form complementary base pairs. C) Adenine pairs with thymine and cytosine pairs with guanine when they are on opposite DNA strands. D) DNA is a duplex, with two strands forming a double helix. E) The DNA strands are antiparallel, and the strands are held together by hydrogen bonds.
The major constituent of regular dense connective tissue is:
a. adipose cells. b. collagen fibers. c. reticular fibers. d. macrophages. e. a semifluid matrix.