What is a fragile site?
A) an area around the centromere prone to inversion due to gene duplications
B) a site in a chromosome prone to duplication, such as the bar gene
C) a structural component of a chromosome due to the nucleotide sequence to it that leads to a high percentage of chromosomal breakage
D) a structural component of a chromosome due to proteins bound to it that leads to a high percentage of chromosomal breakage
E) the telomere of a chromosome can fall off due to spindle malfunctions during meiosis
Answer: C
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An individual with the blood group genotype LMLN has the phenotype MN. What is the relationship between the LM and LN alleles?
A) codominance B) pleiotropy C) LN is dominant D) incomplete dominance
Which substance typically provides rigidity to fungal cell walls?
a. starch b. chitin c. lignin d. cellulose
What advantage does sound communication have over visual communication?
What will be an ideal response?
Phanerochaete chrysosporium:
A. is a wood-decay fungus that is used to bleach paper and decompose dioxin B. is a lichen that serves as food for reindeer C. is the cause of lung disease D. is an hallucinogenic mushroom E. is a rust that causes oak trees to shed their leaves prematurely