High molecular similarity always reflects evolutionary relatedness
Indicate whether the statement is true or false
FALSE
Explanation: Molecular data are less susceptible to convergence than certain morphological traits, but it is possible that a given pair of similar sequences (particularly coding sequences) from unrelated groups may have converged owing to natural selection. Horizontal (or lateral) transfer also occurs.
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lining of the stomach, intestines, gall bladder, fallopian tubes
A. Pseudostratified columnar B. Simple columnar C. Simple cuboidal D. Simple squamous E. Stratified squamous F. Transitional
Scientists are attempting to make a chicken look like a dinosaur ("dino-chicken") by using drugs or proteins to turn on certain homeotic genes in somatic cells during the development of a chicken embryo. If the scientists are successful in creating both
male and female "dino-chickens," and then the "dino-chickens" mate, what type of offspring would the two "dino-chickens" have? A) a male or female "dino-chicken" B) a male or female normal chicken C) You can't know for sure because of random fertilization. D) You can't know for sure because it depends on whether the modified homeotic genes are dominant or recessive.
Sometimes premature babies suffer from respiratory distress syndrome. What substance would you administer in a breathing tube to the infant?
A) antibiotics B) surfactant C) anti-inflammatory drugs D) hydrocortisone
If you awoke and looked out your window and saw a gopher shaking, what might be true about the temperature outside?
What will be an ideal response?