Genetics Review
Quiz by HEIDI ROTH
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15 questions
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- Q1The allele that masks the effects of the other is ____ and the masked allele is ____.homozygous, recessivedominant, recessivedominant, incompletehomozygous, heterozygous30s
- Q2A dominant phenotype is the most common expression of a particular gene in a population. True or false?TrueFalse30s
- Q3Punnett squares are used by geneticists to determine the probability of different offspring genotypes. In the one shown below, what letter(s) belong in the lower right box?AAaaaAa30s
- Q4If two parents are heterozygous for a genetically inherited dominant trait (T), what is their genotype?TTtttTT30s
- Q5If two parents are homozygous for a genetically inherited recessive trait, what is the probability that they will have a child who does not have this trait in his or her phenotype?25%50%100%0%30s
- Q6For each trait, there are ___________ allele possibilities.412Unlimited30s
- Q7The physical trait that is expressed as an individualHomozygousHeterozygousPhenotypeGenotype30s
- Q8When alleles of an organism are either both dominant or recessive, this is calledHomozygousDominantHeterozygousRecessive30s
- Q9When the alleles for a trait that are present in an organism are not the sameHeterozygousHeredityHomozygousGenetic30s
- Q10What is the the genetic makeup of a tall plant that is homozygous dominant. T = tall t = shortTTTtTtt30s
- Q11The different forms of a gene for any given traitHomozygousGenetic make upHeterozygousAlleles30s
- Q12For an offspring to _____ a recessive trait, both parents must have at least one ______ allele in their genotypeexpress, recessivecontrol, recessivedominate, dominant30s
- Q13In this image, what are the genotypes of the male and of the female parentsbb, BbBb, BbBb, bbbb, bb30s
- Q14Example of homozygous recessive?bbbBbBB30s
- Q15The name of the person who pioneered genetics in the 19th centuryReginald PunnettIsaac NewtonCharles DarwinGregor Mendel30s
