During meiosis in a reciprocal translocation heterozygote, what are the three ways that chromosomes may segregate at anaphase I, and what are the consequences for the resulting gametes?
What will be an ideal response?
In alternate segregation, alternate centromeres (from nonhomologous chromosomes) migrate to the same pole. This results in normal gametes, each having a complete set of genes (one half with all normal chromosomes and one half with translocated chromosomes). In adjacent-1 segregation, adjacent nonhomologous centromeres migrate to the same pole. This results in gametes with either duplications or deletions of genes, which are usually inviable. In adjacent-2 segregation, adjacent homologous centromeres migrate to the same pole. This also results in inviable gametes with duplications or deletions.
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Neonates and individuals who are immunocompromised are at risk for developing meningitis if they contract which organism?
a. Elizabethkingia meningoseptica b. Myroides odoratus c. Sphingobacterium spp. d. Centers for Disease Control and Preven-tion (CDC) group EO-3
Which bone joins the lower end of the humerus to form the elbow joint?
a. scapula b. carpal c. radius d. ulna e. clavicle
An organism's ________ is its lifetime pattern of growth, development, and reproduction
Fill in the blank(s) with correct word
During an infection, white blood cells travel to the infected site and phagocytize the pathogens. After phagocytosis,
primary lysosomes fuse with the phagocytic vesicle to form a larger vesicle called a secondary lysosome. The purpose for this process is to: a. Both B and D. b. degrade the bacteria and export it from the cell. c. wrap the pathogen in additional membrane, rendering them harmless. d. mix the pathogens with strong hydrolytic enzymes and destroy them. e. coat the bacteria in lipids derived from the Golgi complex, which cover and smother them.