GENETICS: please help explain the following question. Will give a thumbs up if given the correct information.
Homework Answers
a. Phenotypes of the rest males were: (1) yellow bodies, zest eyes, split bristles.
(2) yellow bodies, wild-type eyes, split bristles.
(3) tan bodies, zest eyes, wild-type bristles.
(4) tan bodies, wild-tyoe eyes, wild-type bristles.
b. Progeny of classes A and B produced from genetic recombination.
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GENETICS: please help explain the following question. Will give
a thumbs up if given the correct...
(1) A Drosophila male from a true-breeding stock with scabrous eyes and normal bristles was mated...
(1) A Drosophila male from a true-breeding stock with scabrous eyes and normal bristles was mated with a female from a true-breeding stock with normal eyes and javelin bristles. Both scabrous eyes and javelin bristles are autosomal recessive mutant traits. The F1 progeny all had normal eyes and normal bristles. F1 females from this cross were mated with males with both scabrous eyes and javelin bristles. a. Write all the possible phenotypic classes of the progeny that could be produced...
4. There are three genes on the X-chromosome in drosophila, yellow (y), white (w), and cut...
4. There are three genes on the X-chromosome in drosophila, yellow (y), white (w), and cut (ct). A yellow-bodied, white-eyed, and a homozygous normal winged female fly was crossed to a male with wild type body, wild type eyes, and cut wings. The Fi females were wild type for all three traits, while the Fi males had yellow bodies, white eyes, normal wings. The Fi females were crossed to yellow bodied, white eyed, cut wing males. The resulting F2 progeny...
Question 4 (1 point) Continue Consider a mating between a single F2 male that is phenotypically...
Question 4 (1 point) Continue Consider a mating between a single F2 male that is phenotypically wild-type (i.e., red eyes and tan body) and a single, phenotypically wild-type F2 female. What is the probability that ALL of the resulting F3 progeny will be true breeding and have red eyes and tan bodies? 1/6 01/12 1/256 1/36 1/8 1/64 1/18 1/32 Question 3 (1 point) Saved In flies (Drosophila), loss of function mutations in the X-linked white gene cause a recessive...
You begin working in a genetics lab that uses Drosophila and find that a previous student...
You begin working in a genetics lab that uses Drosophila and
find that a previous student has left behind a bottle of flies that
have a yellow (instead of brown) body with no information about the
mutation that leads to the yellow body color. You first determine
that these flies are true breeding, and then set up some crosses.
Cross 1: You cross yellow females with true breeding wild type
males. In the F1s, all of the females have brown...
genetics If Drosophila, the oval (ov) locus is on the X-chromosome. Recessive mutants make the eyes...
genetics
If Drosophila, the oval (ov) locus is on the X-chromosome. Recessive mutants make the eyes oval instead of the normal round. Furthermore, it is known that when two mutations occur within the oval gene, the phenotype is a more extreme oval phenotype. The genes sn and v are closely linked to the right and left of oval, respectively. Two single mutations ov1 and ov3 were obtained and used in the following experiments. In 10,000 progeny of a female of...
In Drosophila, a cross between triply abnormal females with the X-linked recessive traits yellow bodies (y),...
In Drosophila, a cross between triply abnormal females with the X-linked recessive traits yellow bodies (y), echinus bristles (ec), and white eyes (w) and phenotypically normal males produces phenotypically normal F1 females. These F1 females are then testcrossed, and 1000 offspring occur as follows: Body Bristles Eyes number normal normal normal 447 yellow echinus white 442 yellow normal normal 18 normal echinus white 17 yellow normal white 28 normal echinus normal 33 normal normal white 8 yellow echinus normal 7...
genetics questions. Please help thank you! t0 1-3. Match each of the following with the correct...
genetics questions. Please help thank you!
t0 1-3. Match each of the following with the correct type of gene transfer in bacteria (conjugation, transformation, or transduction) niee (a) Hfr x F- (b) Bacteriophage needed (c) Naked DNA transferred (d) Plaques formed (e) Direct contact between bacterial cells () F+xF- In Drosophild, the ganes ct (cut wing).yello ly), and v (vermilion cye color) arc all X-linked. Females hetcrozygous for all thrcc markers were mated with wildtype males, and the following malc...
can someone please explain this answer through punnett squares? Having troubles understanding the process. 141 In...
can someone please explain this answer through punnett
squares? Having troubles understanding the process.
141 In Drosophila, white eyes (w) and yellow body (y) are both recessive X-linked mutations. The wild type alleles, w+ and y+, control red eyes and dark body color, respectively. If a homozygous yellow body, red-eyed female is crossed with a dark body, white-eyed male, and F1 progeny are interbred, what will the phenotypes and ratios of the F1 and F2 be? osla 900 Answer: F1-females:...
5. In Drosophila the genes white (w) black (b), speck (sp), and plexus (px) all map...
5. In Drosophila the genes white (w) black (b), speck (sp), and plexus (px) all map to different chromosomes. w/w or w/Y have white eyes (wild type eyes are red) X chromosome b/bflies have black bodies (wild type bodies are tan) 2nd chromsomome sp/sp flies have extra bristles on their body (wild type flies do not) 3rd chromosome px/px flies have extra veins on their wings (wild type flies do not) 4th chromosome You set up the following cross: P:...
The rosy (ry) gene of Drosophila encodes an enzyme called xanthine dehydrogenase. Flies homozygous for ry...
The rosy (ry) gene of Drosophila encodes an enzyme called xanthine dehydrogenase. Flies homozygous for ry mutations exhibit a rosy eye color. Heterozygous females were made that had ry41 Sb on one homolog and Ly ry564 on the other homolog, where ry41 and ry564 are two independently isolated alleles of ry. Ly (Lyra [narrow] wings) and Sb (Stubble [short] bristles) are dominant markers to the left and right of ry, respectively. These females are now mated to males homozygous for...
(1) A Drosophila male from a true-breeding stock with scabrous eyes and normal bristles was mated with a female from a true-breeding stock with normal eyes and javelin bristles. Both scabrous eyes and javelin bristles are autosomal recessive mutant traits. The F1 progeny all had normal eyes and normal bristles. F1 females from this cross were mated with males with both scabrous eyes and javelin bristles. a. Write all the possible phenotypic classes of the progeny that could be produced...
4. There are three genes on the X-chromosome in drosophila, yellow (y), white (w), and cut (ct). A yellow-bodied, white-eyed, and a homozygous normal winged female fly was crossed to a male with wild type body, wild type eyes, and cut wings. The Fi females were wild type for all three traits, while the Fi males had yellow bodies, white eyes, normal wings. The Fi females were crossed to yellow bodied, white eyed, cut wing males. The resulting F2 progeny...
Question 4 (1 point) Continue Consider a mating between a single F2 male that is phenotypically wild-type (i.e., red eyes and tan body) and a single, phenotypically wild-type F2 female. What is the probability that ALL of the resulting F3 progeny will be true breeding and have red eyes and tan bodies? 1/6 01/12 1/256 1/36 1/8 1/64 1/18 1/32 Question 3 (1 point) Saved In flies (Drosophila), loss of function mutations in the X-linked white gene cause a recessive...
You begin working in a genetics lab that uses Drosophila and
find that a previous student has left behind a bottle of flies that
have a yellow (instead of brown) body with no information about the
mutation that leads to the yellow body color. You first determine
that these flies are true breeding, and then set up some crosses.
Cross 1: You cross yellow females with true breeding wild type
males. In the F1s, all of the females have brown...
genetics
If Drosophila, the oval (ov) locus is on the X-chromosome. Recessive mutants make the eyes oval instead of the normal round. Furthermore, it is known that when two mutations occur within the oval gene, the phenotype is a more extreme oval phenotype. The genes sn and v are closely linked to the right and left of oval, respectively. Two single mutations ov1 and ov3 were obtained and used in the following experiments. In 10,000 progeny of a female of...
genetics questions. Please help thank you!
t0 1-3. Match each of the following with the correct type of gene transfer in bacteria (conjugation, transformation, or transduction) niee (a) Hfr x F- (b) Bacteriophage needed (c) Naked DNA transferred (d) Plaques formed (e) Direct contact between bacterial cells () F+xF- In Drosophild, the ganes ct (cut wing).yello ly), and v (vermilion cye color) arc all X-linked. Females hetcrozygous for all thrcc markers were mated with wildtype males, and the following malc...
can someone please explain this answer through punnett
squares? Having troubles understanding the process.
141 In Drosophila, white eyes (w) and yellow body (y) are both recessive X-linked mutations. The wild type alleles, w+ and y+, control red eyes and dark body color, respectively. If a homozygous yellow body, red-eyed female is crossed with a dark body, white-eyed male, and F1 progeny are interbred, what will the phenotypes and ratios of the F1 and F2 be? osla 900 Answer: F1-females:...
5. In Drosophila the genes white (w) black (b), speck (sp), and plexus (px) all map to different chromosomes. w/w or w/Y have white eyes (wild type eyes are red) X chromosome b/bflies have black bodies (wild type bodies are tan) 2nd chromsomome sp/sp flies have extra bristles on their body (wild type flies do not) 3rd chromosome px/px flies have extra veins on their wings (wild type flies do not) 4th chromosome You set up the following cross: P:...
The rosy (ry) gene of Drosophila encodes an enzyme called xanthine dehydrogenase. Flies homozygous for ry mutations exhibit a rosy eye color. Heterozygous females were made that had ry41 Sb on one homolog and Ly ry564 on the other homolog, where ry41 and ry564 are two independently isolated alleles of ry. Ly (Lyra [narrow] wings) and Sb (Stubble [short] bristles) are dominant markers to the left and right of ry, respectively. These females are now mated to males homozygous for...
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