Multiple Choice
In a genetic cross using a Punnett square, what is the null hypothesis for the expected genotype ratios?
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13. Mendelian Genetics
Punnett Squares
Back13. Mendelian Genetics
Punnett Squares
- Multiple ChoiceWhich of these is commonly used to predict the results of simple genetic crosses?152views
- Multiple ChoiceIn a genetic cross using a Punnett square, which fraction represents 25% of the offspring?291views
- Multiple ChoiceWhat are the gamete possibilities of an organism with the genotype tt?252views
- Multiple ChoiceWhat is typically the purpose of drawing a forked-line diagram in genetics?256views
- Multiple ChoiceIn a dihybrid cross involving two heterozygous parents (AaBb x AaBb), what phenotypes would you predict in the F2 generation?296views
- Multiple Choice
Mendel found that green pea pod color (y) was recessive to yellow pea pod color (Y). For the cross Yy × yy, what percentage of offspring are expected to be yellow?
2855views26rank - Open Question
A female dog with black fur (Ff) mates with a male dog that also has black fur (Ff). Determine the possible genotypes and phenotypes of their puppies using a Punnett Square. Black fur (F) is dominant to grey fur (f).
a) # of possible Genotypes:
FF: ________
Ff: ________
ff: _________
b) % of possible Phenotypes:
Black fur: __________
Grey fur: ___________
2285views51rank - Textbook Question
In garden peas, yellow seeds (Y) are dominant to green seeds (y), and inflated pods (I) are dominant to constricted pods (i). Suppose you have crossed YYII parents with yyii parents. List the genotype(s) of gametes produced by F1 individuals.
872views - Textbook QuestionIn garden peas, yellow seeds (Y) are dominant to green seeds (y), and inflated pods (I) are dominant to constricted pods (i). Suppose you have crossed YYII parents with yyii parents. Draw the F2 Punnett square. Based on this Punnett square, predict the expected phenotype(s) in the F2 generation and the expected frequency of each phenotype.1220views
- Textbook QuestionIn garden peas, yellow seeds (Y) are dominant to green seeds (y), and inflated pods (I) are dominant to constricted pods (i). Suppose you have crossed YYII parents with yyii parents. Draw the F1 Punnett square and predict the expected F1 phenotype(s).989views
- Textbook Question
In garden peas, yellow seeds (Y) are dominant to green seeds (y), and inflated pods (I) are dominant to constricted pods (i). Suppose you have crossed YYII parents with yyii parents. Draw the F2 Punnett square. Based on this Punnett square, predict the expected phenotype(s) in the F2 generation and the expected frequency of each phenotype.
474views - Textbook Question
In garden peas, yellow seeds (Y) are dominant to green seeds (y), and inflated pods (I) are dominant to constricted pods (i). Suppose you have crossed YYII parents with yyii parents. Draw the F1 Punnett square and predict the expected F1 phenotype(s).
840views - Textbook Question
In tigers, a recessive allele of a particular gene causes both an absence of fur pigmentation (a white tiger) and a cross-eyed condition. If two phenotypically normal tigers that are heterozygous at this locus are mated, what percentage of their offspring will be cross-eyed? What percentage of cross-eyed tigers will be white?
1952views - Multiple ChoiceIn a monohybrid cross using a Punnett square, what is the expected genotypic ratio of the offspring when both parents are heterozygous for a trait?449views