Which of the following statements regarding mutations is not correct?
mutations create variation within a species.
mutations are typically beneficial to an organism.
mutations can be related to an organisms changing environment.
mutations typically cause an organism to become extinct.

Which was most likely an effect on society that resulted from improvements in blood handling during world war i and world war ii?

If an organ has six haploid chromosomes,how many chromosomes are present. 6 12

Which of these is true of the cytoplasm of an unfertilized egg? a. it is an unevenly distributed mixture of mrna, proteins, organelles, and other substances. b. it does not contain substances that are important in directing development. c. these substances are supplied by the sperm. d. it does not contain substances that are important in directing development. e. development is directed solely by the surrounding cells. f. it is a homogeneous mixture of mrna, proteins, organelles, and other substances. g. it does not contain substances that are important in directing development. h. these substances are produced by the dna of the fertilized zygote.