The structures in this figure:a
provide anchorage points between adjacent cells.
b. allow the transport of small molecules and ions between adjacent cells.
c. allow passage of materials through intercellular spaces.
d. prevent the passage of materials through intercellular spaces.
e. can only be found in plants.c
B
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Four of the five choices listed below are monocots
Select the exception. a. grass b. lily c. melon d. orchid e. palm
Identifying an autosomal recessive mutation in a mutagenic screen in Drosophila requires identification of a mutant in the F3 generation. If testing for a sex-linked recessive lethal mutation (e.g
, cn l + using a balancer chromosome such as cnCyO), in which generation can lines with mutations be identified?
When comparing viruses and bacteria, which one of the following statements is CORRECT?
A) Viruses are larger than bacteria. B) Viruses are pathogens; bacteria are decomposers. C) Viruses have membrane-bound organelles; bacteria do not have membrane-bound organelles. D) Viruses and bacteria are both able to reproduce on their own. E) Viruses and bacteria both contain genetic material.
You are attempting to link an individual to a crime. The only evidence you have is a tiny drop of blood. How can you use this drop of blood to definitively make the association?
A) You can use the sample to determine the individual's blood type. B) You can use gel electrophoresis to determine the length of the DNA found in the sample. C) You can use PCR to increase the amount of DNA available for STR analysis. D) You can use the sample to check for the presence of the Rhesus factor.