|Chapter 6||Chapter 7||Chapter 8|
Prokaryotes reproduce by ________ fission.
If the two alleles of a gene differ, the organism is ________ , and the dominant allele determines the organism’s phenotype.
A random change in allele frequencies of a population is called ________ drift.
A chromosome may consist of two sister ________ held together by a centromere.
In a cross between two heterozygotes of a trait exhibiting complete dominance, the expected genotype ratio is 1:2:1. The phenotype ratio should be ________ .
A fast rabbit has good ________ fitness because that trait allows it to leave more offspring.
Human gametes (eggs and sperm) have ________ chromosomes.
Flower color in the snapdragons exhibits ________ dominance, the heterozygote phenotype is intermediate between those of the homozygotes.
Inherited traits of an organism that enhance its survival and reproduction in to its environment is called ________ .
Checkpoints during the ________ cycle regulate cell division and mitosis.
Human blood types exhibit ________ when both IA and IB alleles contribute expression to the phenotype.
Mammalian forelimbs are examples of ________ structures, derived from a common ancestor.
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