Mendelian Genetics
Quiz by Graeme Ritchie
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15 questions
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- Q1Phenotype refers to an organism's:genetic compositionphysical appearanceparentsratio30s
- Q2Genotype refers to an organism's:genetic compositionphysical appearanceenvironmentparents30s
- Q3Alternative forms of the same gene are called ...allelesdominantheterozygousgenes30s
- Q4Which of the following is a phenotype?Gground seedparentsheterozygous30s
- Q5Which of the following is a genotype?25%round seedGgphenotype30s
- Q6Round seeds (R) is dominant to wrinkled seeds (r). The genotype(s) of round seed plants is / are ...RR onlyRr onlyRR or Rrrr only30s
- Q7Which of the following genotypes is heterozygous?Gggreen noseGGgg30s
- Q8Which of the following genotypes is homozygous recessive?rrRRred noseRr30s
- Q9Two true breeding (homozygous) parents are crossed similar to Mendel's P generation. A tall plant is crossed with a short plant. Tall is dominant to short. What is the expected outcome for the F1 generation?half tall, half shortall tallall short3/4 tall, 1/4 short60s
- Q10If the cross from the previous question is continued, what would be the expected outcome in the F2 generation?all short3/4 tall, 1/4 shortall tallhalf tall, half short60s
- Q11Round seeds (R) is dominant to wrinkled seeds (r). The genotype(s) of wrinkled seed plants is / are ...RrwwRRrr30s
- Q12If a plant that has round seeds has a parent that has wrinkled seeds, what is its genotype? (Assume that round is dominant.)rrRRRrRrWw30s
- Q13If you crossed two heterozygous plants, how many of the offspring will also be heterozygous?allhalf1/43/445s
- Q14A plant that has purple flowers is crossed with one that has white flowers. The offspring were half white and half purple. What were the genotypes of the parents?PP x ppimpossible to sayPp x ppPp x Pp45s
- Q15Which of the following outcomes would you expect from the following cross: tall, round (TTRR) x short, wrinkled (ttrr)all offspring short and wrinkledhalf tall, round; half short wrinkledall offspring tall and round9:3:3:145s