A species that has a disproportionately large effect on a community is called a ____ species
Fill in the blank with the appropriate word.
keystone
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________ resist tensile forces and contain keratin to form the protective barrier of the skin.
A) Intermediate filaments B) Microtubules C) Microfilaments D) Actin filaments E) Keratin-associated filaments
Tortoiseshell cats have a coat-color gene on their X chromosome. What process in eukaryotes explains why males can have solid orange or black fur, and only females can have the tortoiseshell pattern of fur?
What will be an ideal response?
rDNA in eukaryotes is typically redundant
Indicate whether the statement is true or false
Some traits are polygenic. Examples of human traits that are polygenic are skin color and height. What is a characteristic that could be used to describe all polygenic traits?
A) They cause diseases or disorders. B) They show a wide range of intermediate conditions between the extremes. C) They appear more commonly in males then in females. D) They are controlled by a single set of alleles