During meiosis II, one spindle fiber fails to attach to a chromosome at the centromere. How will this affect the genetic content of the daughter cells?
A. One daughter cell will have two chromosomes and the other daughter cell will have no chromosomes.
B. One daughter cell will have only maternal genes and the other daughter cell will have only paternal genes.
C. One daughter cell will have three copies of a chromosome and the other daughter cell will have two copies of that chromosome.
D. One daughter cell will contain one extra chromosome and the other daughter cell will have one less of that chromosome.
Answer: D
You might also like to view...
Where do Na+/K+ ATPase pumps play an active role in reabsorbing Na+?
A. in Bowman's capsule epithelial cells, facing the interior of Bowman's space B. in the basolateral membrane of cells of the cortical collecting duct C. in the apical membrane of epithelial cells of the proximal tubule D. in the luminal membrane of epithelial cells of the distal convoluted tubule E. in the basolateral membrane of endothelial cells of peritubular capillaries
This figure shows a lateral view of the right leg. What muscle does number 2 indicate?
A. Tibialis anterior B. Gastrocnemius C. Soleus D. Fibularis longus E. Fibularis tertius
An action potential on a neuron develops when
a. threshold voltage is reached on an axon b. voltage-gated Na+ channels open c. spatial or temporal summation of graded potentials occurs to a great enough degree d. the axon hillock reaches threshold voltage e. any of the above events occur
Which layer of the skin is found directly superficial to the hypodermis?
A. Stratum granulosum B. Papillary region of the dermis C. Stratum spinosum D. Stratum basale E. Reticular region of the dermis