In crosses involving complete dominance, the F2 genotypic ratio is 1:2:1 and is expressed as a
phenotypic ratio of ____________________. Fill in the blank(s) with the appropriate word(s).
ANS: 3/4 dominant and 1/4 recessive or 3:1 ratio
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The __________, a forebrain region, is structurally
and functionally linked with the pituitary gland as a major center for __________ control. Fill in the blank(s) with the appropriate word(s).
Which of the following is characteristic of hypothyroidism?
a. Grave’s disease b. elevated heart rate c. thyroid stimulating antibodies d. intolerant to cold temperatures e. heavy sweating
Modifications of previous behavior based on experience represent
A. learning. B. adaptations. C. fixed actions. D. external stimuli.
The units of inheritance, called ________, are segments of the DNA of a chromosome, ranging from a few hundred to many thousands of nucleotides in length
Fill in the blank(s) with correct word