The Punnett square in Figure 7.1 shows a cross between two parents who have the genotype Ss for a genetic disorder caused by a recessive allele such as Sickle Cell disease. What is the probability that their child will carry the Sickle Cell trait? S s
S SS Ss
s Ss ss

0%
100%
75%
25%
50%

Acertain species of fish can have either long or short fins. the allele for long fins is dominant over the allele for short fins. a heterozygous, long-finned fish is crossed with a homozygous, short-finned fish. of the offspring, will have long fins and be , and will have short fins and be .

Which is the correct order in the scientific process? ask a question ® form a hypothesis ® make an observation ask a question ® make an observation ® form a hypothesis make an observation ® form a hypothesis ® ask a question make an observation ® ask a question ® form a hypothesis

Which process in respiration happens first? a)pyruvate processing b)electron transport chain c)krebs cycle d)glycolysis