Sexual Reproduction
What will be an ideal response?
Type of reproduction that involved the formation of sex cells (gametes), fertilization (fusion of gametes; sperm meeting egg) and formation of a zygote (a diploid cell resulting from the fusion of two haploid gametes; a fertilized ovum.)
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Receptor-mediated endocytosis brings in specific material by engulfing it in vesicles. What factors, either directly or indirectly, are related to this process? Choose all that apply.
_____ It is a passive process. _____ It helps to increase membrane fluidity by helping to transport cholesterol into the cell. _____ It is an active process. _____ It uses carrier proteins. _____ A clathrin coat is present.
Genetic diseases transmitted only by a mother to both sons and daughters result from ____________________ genes
Fill in the blank(s) with correct word
An oxidase test was performed on two organisms for quality control purposes. Pseudomonas aeruginosa and Stenotrophomonas maltophilia tested positive and negative, respectively. Which of the following statements explains this discrepancy?
a. The oxidase reagent is most likely expired. b. The organisms are most likely old and therefore are not properly reacting. c. These organisms are poor choices for quality control purposes; both are oxi-dase-negative organisms. d. No discrepancy is present. The correct results are obtained.
Compared to white muscle fibers, red muscle fibers ____
a. have fewer mitochondria b. have less myoglobin c. make more ATP by lactate fermentation d. fatigue less easily e. get most of their ATP from creatine phosphate