R is the dominant allele for a round pea, r is the recessive allele for a wrinkled pea. If you cross plants
having round peas with plants having wrinkled peas,
a. both pea plants are homozygous.
b. you are conducting a dihybrid cross.
c. you are crossing two parental pea plants.
d. the progeny plants will all have wrinkled peas.
e. you will be able to determine if the round pea plant is homozygous or heterozygous.
E
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As described in section 46.1 and Fig. 46.6 of your book, natural populations are affected by both density-dependent and density-independent factors
In a population affected mainly by density-dependent factors, would you expect natural selection to favor an r-selected or Kselected life history? __________ What will be an ideal response?
A fruit is a matured or ripened ovary
a. True b. False
A sequence of bases located upstream from a reference point occurs:a
towards the 3? end of the amino acid sequence. b. towards the 5? end of the mRNA sequence. c. towards the 3? end of the mRNA sequence. d. towards the 5? end of the transcribed DNA strand. e. towards the carboxyl end of the amino acid sequence.
Which hemoglobin genotype has the highest fitness in an area of low malaria infection?
a. HbAA b. HbAS c. HbSS d. All are equal