A particular gene that controls seed coat color in peas also determines the susceptibility of these peas
to a particular disease. This situation is referred to as:
a. varigation.
b. additive dominance.
c. codominance.
d. pleiotropy.
e. incomplete dominance.
D
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Which of the following receptors detect deep transient pressure, and where are they located?
a. Golgi tendon organs, muscle and connective tissues b. hair receptors, hairy skin c. Pacinian corpuscles, deep dermis d. Merkel’s disks, near the base of the epidermis
Which of the following is a unique, derived trait that is present in all birds?
a. ability to fly b. four-chambered heart c. feathers d. lack of a urinary bladder e. migration
Structural class
What will be an ideal response?
Answer the following questions true (T) or false (F)
1. Both agglutination and ELISA procedures may be used to detect the presences of either viral antigen or the patient's antibodies to a virus. 2. Antiviral drugs exist that target all stages of viral replication except the production of viral nucleic acids. 3. Bacterial spore formation is a type of sexual reproduction.