please answer this with explaination
Homework Answers
In the given case the data will not match with the data in the figure 4.20. If Y chromosome had additional copy of eye color gene then a femal in the absence of eye color and rececive at both the loci should be crossed with the male with eye color, then the possibility that the Y chromosome carries a copy of the eye color gene could be rulled out.
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please answer this with explaination
Figure 4.20 A Drosophila e color gene is located on the...
The following Drosophila crosses were performed Cross 1 Parents: white-eyed straight winged male x red-eyed; curly...
The following Drosophila crosses were performed Cross 1 Parents: white-eyed straight winged male x red-eyed; curly winged female Progeny: all red-eyed flies, half of which are curly winged Cross 2 (reciprocal cross) Parents: red-eyed curly winged male x white-eyed straight winged female Progeny: white-eyed males and red-eyed females, half of each have curly wings. Test crosses with the curly winged progeny from cross 1 and 2 to homozygous straight winged flies resulted in all half curly and half straight winged...
6. The white gene in Drosophila is on the X chromosome and wº (red) is dominant...
6. The white gene in Drosophila is on the X chromosome and wº (red) is dominant over w (white). A red-eyed female is crossed with a white-eyed male. (A) What must the genotype of the male be? (B) What must the genotype of the female be if the progeny are 25% red male, 25% red female, 25% white male, 25% white female?
can someone verify this? In Drosophila, alternate alleles of an X chromosome gene, white, determine red...
can someone verify this?
In Drosophila, alternate alleles of an X chromosome gene, white, determine red eyes (w') and white eyes (w). Alternate alleles of a second X chromosome gene, yellow, determine brown body ) and yellow body (). In cross series A and B, the F1 females are heterozygous for both genes, but the arrangement of alleles in the parental generation is different in each case. Study the genotypes and phenotypes of the P, F1, and F2 flies in...
1. Four eye-color variants in Drosophila- brown, carnation, apricot, and purple - are inherited as recessive...
1. Four eye-color variants in Drosophila- brown, carnation, apricot, and purple - are inherited as recessive traits. Red is the dominant wild-type color. Eight crosses are made between parents of pure-breeding lines. Which of these traits are inherited as X-linked and which are autosomal? Explain how you distinguish between X-inked and autosomal inheritance. a. b. Predict the F2 ratios of crosses between the F1 progeny in A, B, D, and G Cross Parents F1 Progeny FemaleMale Red Red Red Red...
29, In fruit flies, red eyes are dominant over white eyes. The gene for eye color...
29, In fruit flies, red eyes are dominant over white eyes. The gene for eye color (R) is found on the X chromosome (X^R). Females have 2 X chromosomes and males are XY. Fill in the following (case sensitive!): Genotype of a white eyed female: Possible female gametes; separate gametes with a comma (,): Genotype of a red eyed male: Possible male gametes; separate gametes with a comma (,): In fruit flies, red eyes are dominant over white eyes. The...
all of them please Question 10 (1 point) In Drosophila, the mutant black (b) has a...
all of them please
Question 10 (1 point) In Drosophila, the mutant black (b) has a black body and the wild-type (b+) has a gray body; the mutant vestigial (v) has wings that are short and crumpled compared the long wild-type wings (V+). These genes are linked and are located on the X- chromosome. A cross between a female fly and a black, vestigial winged male fly produced the following progeny: gray (b+), normal (v+) 20 gray (b+), vestigial (v)...
In Genetics lab, you decide to further investigate Drosophila eye color. In addition to studying the...
In Genetics lab, you decide to further investigate Drosophila eye color. In addition to studying the sepia gene (se), you decide to study the gene mahogany eyes (mo). Flies that are mo-/mo- have brown eyes. You wonder if a fly that is a double mutant for sepia and mahogany eyes would have very dark brown (almost black) eyes. Because se and mo are both on the third chromosome, you have to do a recombination. You look through a former labmate’s...
A female drosophila fly is homozygous for a null allele of the X-linked white gene. Nondisjunction...
A female drosophila fly is homozygous for a null allele of the X-linked white gene. Nondisjunction of the X chromosome occurs in meiosis I in this female fly. If this female fly mates with a red-eyed male fly, what is a possible exceptional progeny genotype? Group of answer choices A. Xw Y Y B. Xw XwY C. Xw+ Xw Y D. Xw+ Xw+ Y E. Xw+ Xw+ Xw
Help Center 07 Question 38 What phenotypic ratio of offspring would result from a cross between...
Help Center 07 Question 38 What phenotypic ratio of offspring would result from a cross between a white-eyed male fruit fly, and a female that is heterozygous for red eye color? (See Chapter 8.3 Figure your e Text) 2 white-eyed females 2 red-eyed males V none of these 2 red-eyed female 1 white-eyed female: 1 red-eyed male: 2 white-eyed male 1 red-eyed female 1 white-eyed female 1 red-eyed male: 1 white-eyed male 2 red-eyed females: 2 white-eyed males Question 39...
To investigate the inheritance of color variegation in four-o'clocks, Carl Correns performed pairwise crosses between male...
To investigate the inheritance of color variegation in four-o'clocks, Carl Correns performed pairwise crosses between male (pollen) and female (ova) gametes from flowers growing on three types of branches: variegated, all white, and all green. Solid white branches are homoplasmic for mutant chloroplasts, solid green branches are homoplasmic for wild-type chloroplasts, and variegated branches are heteroplasmic for both types of chloroplasts. In a different species of variegated plant, color is determined by two codominant alleles of a nuclear gene. If...
The following Drosophila crosses were performed Cross 1 Parents: white-eyed straight winged male x red-eyed; curly winged female Progeny: all red-eyed flies, half of which are curly winged Cross 2 (reciprocal cross) Parents: red-eyed curly winged male x white-eyed straight winged female Progeny: white-eyed males and red-eyed females, half of each have curly wings. Test crosses with the curly winged progeny from cross 1 and 2 to homozygous straight winged flies resulted in all half curly and half straight winged...
6. The white gene in Drosophila is on the X chromosome and wº (red) is dominant over w (white). A red-eyed female is crossed with a white-eyed male. (A) What must the genotype of the male be? (B) What must the genotype of the female be if the progeny are 25% red male, 25% red female, 25% white male, 25% white female?
can someone verify this?
In Drosophila, alternate alleles of an X chromosome gene, white, determine red eyes (w') and white eyes (w). Alternate alleles of a second X chromosome gene, yellow, determine brown body ) and yellow body (). In cross series A and B, the F1 females are heterozygous for both genes, but the arrangement of alleles in the parental generation is different in each case. Study the genotypes and phenotypes of the P, F1, and F2 flies in...
1. Four eye-color variants in Drosophila- brown, carnation, apricot, and purple - are inherited as recessive traits. Red is the dominant wild-type color. Eight crosses are made between parents of pure-breeding lines. Which of these traits are inherited as X-linked and which are autosomal? Explain how you distinguish between X-inked and autosomal inheritance. a. b. Predict the F2 ratios of crosses between the F1 progeny in A, B, D, and G Cross Parents F1 Progeny FemaleMale Red Red Red Red...
all of them please
Question 10 (1 point) In Drosophila, the mutant black (b) has a black body and the wild-type (b+) has a gray body; the mutant vestigial (v) has wings that are short and crumpled compared the long wild-type wings (V+). These genes are linked and are located on the X- chromosome. A cross between a female fly and a black, vestigial winged male fly produced the following progeny: gray (b+), normal (v+) 20 gray (b+), vestigial (v)...
Help Center 07 Question 38 What phenotypic ratio of offspring would result from a cross between a white-eyed male fruit fly, and a female that is heterozygous for red eye color? (See Chapter 8.3 Figure your e Text) 2 white-eyed females 2 red-eyed males V none of these 2 red-eyed female 1 white-eyed female: 1 red-eyed male: 2 white-eyed male 1 red-eyed female 1 white-eyed female 1 red-eyed male: 1 white-eyed male 2 red-eyed females: 2 white-eyed males Question 39...
To investigate the inheritance of color variegation in four-o'clocks, Carl Correns performed pairwise crosses between male (pollen) and female (ova) gametes from flowers growing on three types of branches: variegated, all white, and all green. Solid white branches are homoplasmic for mutant chloroplasts, solid green branches are homoplasmic for wild-type chloroplasts, and variegated branches are heteroplasmic for both types of chloroplasts. In a different species of variegated plant, color is determined by two codominant alleles of a nuclear gene. If...
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