In a dihybrid cross for which the parental cross is A/A;B/Bx a/a;b/b, what proportion of F2 offspring will be heterozygous for both genes? Assume independent assortment. 1/2 1/4 3/4

Q: Calculate the probability of either all-dominant or all-recessive genotypes for the alleles A, B, E,…

A: For each gene pair, the probability of getting a homozygous dominant genotype (e.g., AABB) is 1/4…

Q: You cross AY /A; C/c x AY /A; c/c Which proportion of progeny would be agouti (gray)? 1) 1/2 2) 1/3…

A: Introduction  When genes interact adversely, called epistasis, one gene might hide or hinder the…

Q: Given the following information, determine the inheritance of flower color in this plant and…

A: The first set of parents is called the “parental generation” (P). All the offspring generated by…

Q: Two true-breeding pea plants are crossed: one has purple flowers and green seeds, and the other has…

A: In this problem, we are exploring the concepts of genetics and inheritance using a classic example…

Q: There are some members of the genus Datura that are trisomic for the chromosome set, which carries…

A: The cross between P+P+P X P+P is done in step 2

Q: A certain plant species has dominant red flower color (R) to the recessive white flower color (r). A…

A: Introduction Inheritance is the process of transmitting traits from parent to offspring. The traits…

Q: In peas, the green pod allele (G) is dominant to the yellow pod allele (g). The inflated pod allele…

A: As per the question, G_ = green gg = yellow H_ = inflated hh = constricted

Q: We have dealt mainly with only two genes, but the sameprinciples hold for more than two genes.…

A: a) To find: What proportion of progeny will phenotypically resemble (1) the first parent (2) the…

Q: In snapdragons, red flower color is incompletely dominant over white. Cross 2 heterozygous pink…

A: A gene is a unit of genetic material and alleles are the alternative form of genes present at the…

Q: In zucchini, white fruit (W) is dominant over yellow (w) and disk-shaped fruit (D) is dominant over…

A: Is is given that white fruit (W) is dominant over yellow (w) and disk-shaped fruit (D) is dominant…

Q: Aa x aa，Aa x aa， Aa x AA，Aa x Aa. which of those fours are considered as a monohybrid cross？and…

A: The Punnett square is a graphical representation or tabular diagram that predicts the genotype and…

Q: nd seed (R) is dominant to wrinkled seed (r) and yellow seed (Y) is dominant to green (y), how many…

A: F1 generation:   Y Y y Yy Yy y Yy Yy The outcome is Yy green-yellow. where yellow seed (Y)…

Q: Table 2 below shows the banding pattern for a cross between parents P1 and P2 producing the 6…

A: The inheritance of the characteristics forms the basis for genetics in that those traits observed in…

Q: The non-wild-type alleles are k (clipped wings), l (long tail), and m (magical powers). The parental…

A: Here the test cross that produced 1572 offspring was conducted between k/k+  l/l+  m/m+…

Q: But for part A if you cross dd ll x DD LL, won't all the offspring be DdLl (dark colored and long…

A: Homozygous  The individual who has both same variant of allele of a gene  of a particular…

Q: In a parental cross of a ADHL disease trait, where the father is affected and the mother is…

A: ADHL disease is a autosomal dominant trait

Q: Consider the following cross examining four gene in two parental lines: Parent 1: A/a; B/b; D/d; e/e…

A: Product rule is used to determine the overall probability. The product of probability of two…

Q: Purple is dominant to white in flower color determination. The F2 generation is as follows: 3/4…

A: The cross of parents P1 x P2 leads to first-generation or F1. The crossing of two individuals from…

Q: Cross a heterozygous dominant purple flowered plant to a recessive white flowered plant. What is…

A: From the monohybrid cross, Mendel’s law of segregation was given. According to this law, when two…

Q: in sweet peas, the allele P is needed for color expression (pp results in no color). the precise…

A: As per the question, P_B_ = red P_bb = blue ppB_, ppbb = colourless

Q: In mice, black fur (B) is dominant to brown fur (b), and short tails (T) are dominant to long tails…

A: GIVEN; Genes for the color of fur (B) & length of the tail (T) in Mice.  B - Black Fur…

Q: In tomatoes, regular leaves (L) are multilobed and serrated and potato leaves (l) are broad, smooth,…

A: We are authorized to answer only one question at a time, since you have not mentioned which question…

Q: A pure-breeding (or true-breeding) individual is homozygous for all genes of interest. From the…

A: True breed refers to the presence of homozygous genotype for each genes.  According to product rule,…

Q: In corn, seedling color is determined by genes at two loci (C/c and D/d).  Suppose that you cross a…

A: The epistic interaction represent the effect of one gene on the other gene. Different forms of…

Q: In the cross TtPpAa x ttPpaa, what fraction of offspring are predicted to be homozygous recessive…

A: We can better grasp how features, like height or eye color, are handed down from one generation to…

Q: Consider the following cross examining four gene in two parental line: Parent 1: A/a; B/B; D/d; E/e…

A: This is a tetrahybrid cross, meaning a cross involving study of four different genes. The number of…

Q: You have a pea plant with a yellow pea phenotype but do not know if the genotype is homozygous (YY)…

A: The yellow and green alleles, respectively, are designated by the alleles ‘Y’ and ‘y’. ‘Y’ is…

Q: The expected progeny ratio of an intercross would be (assume no linkage): a- 1 AaBb, 1 Aabb, 1 aaBb,…

A: Progeny ratio is the ratio of phenotypes among the offspring. when AaBb x AaBb crosses, A and the B…

Q: A white F2 plant is allowed to self-fertilize. Of the progeny, 3/4 are white-flowered, and 1/4 are…

A: Genes are the unit of inheritance. The different features of an organism are mainly provided by…

Q: In a cross between two, dihybrid, heterozygous individuals, what fraction of the offspring will be…

A: dihybrid organism is one that is heterozygous at two different genetic loci.

Q: In a dihybrid cross of two pea plants, one homozygous for two dominant traits and the other…

A: A cross to made to predict the traits of the offsprings in relation to their parents. A dihybrid…

Q: What is the expected F1 phenotypic ratio resulting from a dihybrid cross between two parental pea…

A: Option 5 is the answer. Expected phenotype ratio is 9:3:3:1. Male : Female YR Yr yR yr YR YYRR…

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.