The pedigree below shows a family in which some individuals…
The pedigree below shows a family in which some individuals are affected by an autosomal trait. In this family, the trait appears in only a few individuals, yet in the larger population, the allele that results in this phenotype is the most common allele. What must be true about the allele that results in the affected phenotype? Select all that apply. Image Long Description: The image portrays a genealogical pedigree chart spanning four generations. The chart uses standard symbols of squares and circles, with additional shading to indicate certain conditions or traits. The individuals are organized into four horizontal rows (generations I to IV). Clear lines connecting the shapes represent familial relationships such as marriages and descendants. Details: Generation I consists of one connected pair: a white square and a white circle. Generation II, descending from the pair in Generation I, contains four individuals: two white squares, one black circle, and one white circle. The individual in Generation II represented by a black circle is connected to a white square that is not connected to any of the individuals in Generation I. A vertical line extends down from the pair and connects to a horizontal line connecting to a white square and a white circle in Generation III. One of the white squares in Generation II is connected to a white circle via a horizontal line. The white circle is not connected to Generation I individuals. A vertical line extends down from the white square and white circle to a horizontal line connected to a white square and a white circle in Generation III. Generation III, descending from Generation II, contains four individuals: two white squares and two white circles. The white square connected to the black circle and white square in generation II is connected by a horizontal line to the white circle that is connected to the white circle and white square in Generation II. Generation IV, the last row, contains four individuals connected by a vertical line to the horizontal line connecting the white circle and white square in Generation II. The four individuals are two white circles, a black square, and a diamond.
Read DetailsIn garden peas, seed shape (round or wrinkled) is determined…
In garden peas, seed shape (round or wrinkled) is determined by the gene W and seed color (yellow or green) by gene G with round and yellow being dominant. What phenotype ratio do you get from the following cross: WWGg x wwGg? (screenreader version: n garden peas, seed shape (round or wrinkled) is determined by the gene W and seed color (yellow or green) by gene G with round and yellow being dominant. What phenotype ratio do you get from the following cross: capital W, capital W, capital G, lowercase g crossed with lowercase w, lowercase w, capital G, lowercase g?)
Read DetailsYou make the following cross of two plants with independentl…
You make the following cross of two plants with independently assorting alleles and the following genotypes: AaBbCc × AABbCC. What is the probability of obtaining the genotype AaBBCc in the progeny? (screenreader version: You make the following cross of two plants with independently assorting alleles and the following genotypes: capital A, lowercase a, capital B, lowercase b, capital C, lowercase c × capital A, capital A, capital B, lowercase b, capital C, capital C. What is the probability of obtaining the genotype capital A, lowercase a, capital B, capital B, capital C, lowercase c in the progeny?)
Read DetailsA scientist studying Drosophila received three different mut…
A scientist studying Drosophila received three different mutants from collaborators that all had tiny wings. When the scientist crossed flies with the r1 mutation with flies with r2, she saw the offspring all had tiny wings. When she crossed r2 with r3 mutants, she saw the offspring flies had wild-type normal wing size. What wing size would you expect if the scientist crossed r1 with r3 mutants, and why?
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