These structures are held together by cohesin:
A. Homologous chromosomes
B. Solenoids
C. Sister chromatids
D. Nucleosomes
Answer: C
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Viruses are not filterable.
Answer the following statement true (T) or false (F)
Flatworms and mussels have cellular and extracellular fluids with osmolarity lower than that of the external
environment
Indicate whether the statement is true or false.The undifferentiated genitalia of an early human embryo develops into male genitalia under the influence of ____
a. oxytocin b. prostaglandin and DHT c. prolactin d. testosterone, AMH, and DHT e. Wolfian duct inhibitors
Charlotte liked to have a suntan all of the time, so she never wore sunscreen at the beach or in the tanning salon. During a visit to her doctor, she was told that she has the most common form of skin cancer
She will be all right, but she should avoid prolonged exposure to UV radiation in the future. Which skin cancer does she have? A) melanoma B) squamous cell carcinoma C) sebaceous carcinoma D) basal cell carcinoma