A change in a gene that alters or harms function is known as a mutation. In contrast, an alternate healthy form of a gene is known as a ___________
Fill in the blank(s) with correct word
polymorphism
Normal alleles that are common in a population, or polymorphisms, provide genetic
variety and sometimes a biologic advantage.
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The nurse is caring for a client pregnant with twins. Which statement indicates the client needs additional information?
1. "Because both of my twins are boys, I know that they are identical." 2. "If my twins came from one fertilized egg that split, they are identical." 3. "If I have one boy and one girl, I will know they came from 2 eggs." 4. "It is rare for twins to both be within the same amniotic sac."
Which of the following is the most important instruction a nurse should give a client with a mild case of bunions?
A) Avoid strenuous exercise or running. C) Don proper footwear. B) Avoid foot creams. D) Regularly use analgesics.
A patient notices that the doctor writes "positive Chadwick's sign" on her chart. She asks the nurse what this means. The nurse's best response is
a. "It refers to the bluish color of the cervix in pregnancy." b. "It means the cervix is softening." c. "The doctor was able to flex the uterus against the cervix." d. "That refers to a positive sign of pregnancy."
The chestnut-sized structure surrounding the male urethra, just below the urinary bladder, is known as the:
a. Prostate gland b. Testis c. Seminal vesicle d. Glans penis