Which of the following glands secretes hormones that enable the body to respond to stress?
What will be an ideal response?
adrenal
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In Drosophila, the hunchback gene encodes a protein (HB) that has a role in the development of the thorax. In the zygote and embryo, the expression of hunchback is stimulated by high concentrations of Bicoid protein. Which of the following is accurate about the expression of hunchback in the Drosophila embryo?
A. The HB protein is produced throughout the embryo. B. The HB protein is produced only in the anterior half of the embryo. C. The HB protein is produced only in the posterior half of the embryo. D. The HB protein is produced in the middle of the embryo; but is not produced in the anterior or posterior end. E. No HB protein is produced in the embryo.
The length of monkey flower leaves is inherited as an incomplete dominant trait. When long leaves are crossed with short leaves a third phenotype, intermediate leaves, is produced. A plant breeder crosses two monkey flowers. The resultant offspring are 58 intermediate and 52 short-leafed plants. What are the phenotypes of the parent monkey flowers? Explain your answer
What will be an ideal response?
A genetic strategy that starts with knowing the DNA sequence and works toward identifying an associated phenotype is known as ________
Fill in the blank(s) with correct word
Restriction enzymes are mainly derived from:
A) fungi. B) animal cells. C) yeast. D) bacteria.