A process that is part of the cell cycle and parcels out the duplicated copies of genetic material for cell division in eukaryotes is called ________
A) nucleosome
B) meiosis
C) histone
D) mitosis
D
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Cytokines
A. play key roles in both specific and nonspecific immunity. B. play key roles in both specific and non-specific immunity and are required for regulation of the immune response. C. are required for regulation of the immune response. D. cause lysis of invading microorganisms.
A heterozygote has
A) two different alleles for a gene. B) only one allele for a gene. C) an extra genome. D) one copy of each sex chromosome.
The genes for mahogany eyes and ebony body are approximately 25 map units apart on chromosome III in Drosophila
Assume that a mahogany-eyed female was mated to an ebony-bodied male and that the resulting F1 phenotypically wild-type females were mated to mahogany, ebony males. Of 1000 offspring, what would be the expected phenotypes, and in what numbers would they be expected?
Mendel crossed two pea plants with round seeds. All seeds of the offspring were round. He then crossed a plant with round seeds to a plant with wrinkled seeds and all offspring had wrinkled seeds. Which of the following is true?
A) a mutation occurred B) the plants he used were not true breeding C) wrinkled is dominant D) round is dominant E) the trait does not breed true