Favism is a disease in which a person cannot tolerate a certain type of bean. It is caused by an X-linked, recessive gene. If Joe has it, which statement would be true?
A) All his sons will have it.
B) His daughters will carry it.
C) Joe's father had it.
D) Half of Joe's sons will have it.
B
You might also like to view...
While in South America, you come across what you think are two groups of birds in the same location. They are nearly identical aside from their color
After years of observation, you conclude that the birds eat similar diets and share similar behaviors but do not reproduce with each other. These groups of birds appear to be an example of A. a single biological species. B. a single ecological species. C. a ring species. D. two different species on the basis of the ecological niche occupied. E. two different species on the basis of reproductive behavior.
With the advent of tools to incorporate molecular data, phylogenetic analysis can be used to:
A. reconstruct the evolutionary history of a group of organisms over millions of years. B. track the spread of a pathogen, such as a fungus or virus, from place to place. C. identify the origin of invasive pest species. D. track shipments of endangered species or their products (such as elephant ivory or bushmeat). E. All of the answer options are correct.
Tanisha and Tawanda are twins but do not look alike. They are the result of fertilization of
A) one oocyte by two sperm cells. B) two oocytes by one sperm cell. C) two oocytes by two sperm cells. D) one oogonium by one spermatogonium.
Which of the following STDs is caused by a virus?
A. vaginitis B. gonorrhea C. chlamydia D. HIV/AIDS E. syphilis