________ are physical or chemical agents that cause mutation.
Fill in the blank(s) with the appropriate word(s).
Mutagens
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Which of the following is a characteristic of larval echinoderms?
A) bilateral symmetry B) spiral cleavage C) gastrovascular cavity D) exoskeleton E) lophophore
Which of the following statements is true about photosynthesis and chemical weathering? Select all that apply
A. Both processes release CO2 as a product (i.e., increase atmospheric CO2 levels). B. Both processes use CO2 as a reactant (i.e., decrease atmospheric CO2 levels). C. Both processes are typically associated with the long-term carbon cycle. D. Both processes are typically associated with the short-term carbon cycle.
You discover a gene that results in a complete lack of hair in rats, and you name the gene "chromedome." A cross of homozygous normal and homozygous bald rats results in all bald rats. You conclude that the baldness allele is dominant, but when you repeat the cross with different rats none of the offspring are bald. Extremely puzzled you study your records and discover that in the first cross the bald rat was female, while in the second cross the bald rat was male. What do you conclude from this information?
A. Chromedome is imprinted in females. B. Chromedome is imprinted in males. C. Chromedome is dominant in females and recessive in males. D. Chromedome is dominant in males and recessive in females. E. Chromedome is an X-linked gene.
Hematoma formation
What will be an ideal response?