which of the phenotypes would you designate as a mutant for hermaphroditc gametophytes?
which of the phenotypes would you designate as a mutant for hermaphroditc gametophytes?
Homework Answers
1)polka dot
2) glyphosate tolerant
3) paraquat tolerant
4) dark germinator
5) maleless
6) Abscisic acid tolerant
7)non etiolated
8) Salt tolerant
9) FUDR tolerant
These are mutant types
Add Answer to:
which of the phenotypes would you designate as a mutant for
hermaphroditc gametophytes?
Three genes with recessive mutant phenotypes are located on the same chromosome in maize: waxy endosperm...
Three genes with recessive mutant phenotypes are located on the same chromosome in maize: waxy endosperm (wx), shrunken endosperm (sh), and virescent seedling (v). A plant with all three mutant phenotypes is crossed with a true-breeding, wild-type plant. Resulting F1 plants are then backcrossed to the parental mutant line to produce the following progeny: Waxy Shrunken Virescent Number wx sh + 89 + + v 92 + + + 1482 wx sh v 1475 + sh + 480 wx +...
Three genes with recessive mutant phenotypes are located on the same chromosome in maize: short stem...
Three genes with recessive mutant phenotypes are located on the same chromosome in maize: short stem (ss), defective endosperm (de), and virescent seedling (v). A plant with all three mutant phenotypes is crossed with a true-breeding, wild-type plant. Resulting F1 plants are then backcrossed to the parental mutant line to produce the following progeny: Waxy Shrunken Virescent Number ss + + 290 + de v 282 ss de + 89 + ...
a) In your own words and referring to phenotypes, not proteins, explain what a conditional mutant...
a) In your own words and referring to phenotypes, not proteins, explain what a conditional mutant is. Include an explanation of the terms permissive and non-permissive conditions. That is, give the phenotype in permissive conditions, and give the phenotype in non-permissive conditions. b) In your own words and referring to proteins, not phenotypes, explain what a conditional mutant is. Include an explanation of the terms permissive and non-permissive conditions. That is, describe the protein in permissive and non-permissive conditions. c)...
As a student project, you have isolated six new mutant strains of E. coli with altered...
As a student project, you have isolated six new mutant strains
of E. coli with altered behavior of the lactose operon. The strains
are listed in the table below, together with their phenotypes (with
regard to significant ?-galactosidase synthesis) in three specific
situations.
Columns 1 and 2 present the phenotypes of each mutant haploid
strain. In column 1, the mutant is in an otherwise wild-type
genome. In column 2, the genome also carries a nonsense-suppressor
mutation (that is not present...
3. Initial cross: Now become familiar with the phenotype of Cy/Pm D/Sh fties and with the...
3. Initial cross: Now become familiar with the phenotype of Cy/Pm D/Sh fties and with the phenot of the mutant stock of flies your instructor has chosen for you to identify as to linkage group To locate the selected mutant gene in its linkage group or chromosome, roceed as follows: Select virgin females homozygous for the mutant gene arbitrarily designate the allele as m) that you are to locate. Mate such virgin mutant females to Cy/Pm D/Sb males. 4. What...
Match the following phenotypes with the mutation that would be the most likely to be its...
Match the following phenotypes with the mutation that would be the most likely to be its cause. The mutant proteins are listed below, followed by the protein domain that is mutated in each case, followed by the amino acid change that is a result of the mutation Try to answer each question by using the following reasoning: if you observe a phenotype, then that could be due to a mutation in protein in which the domain has had an amino...
Two phenotypically wild-type Drosophila (with long wings and red eyes) are crossed, and two mutant phenotypes...
Two phenotypically wild-type Drosophila (with long wings and red eyes) are crossed, and two mutant phenotypes (curved wings and lozenge eyes) are seen to segregate among the progeny as follows: Females: 900 long wing, red eyes 300 curved wing, red eyes Males: 450 long wing, red eyes 450 long wing, lozenge eyes 150 curved wing, red eyes 150 curved wing, lozenge eyes propose a genetic model for the two traits and determine the genotypes of the two wild-type parents
You have isolated an E. coli mutant which is not able to complete DNA replication. Instead,...
You have isolated an E. coli mutant which is not able to complete DNA replication. Instead, only short fragments of DNA are made. Which enzyme would you suspect is mutated? A. Ligase B. Primase C. Helicase
#8 & #9 8. Three genes, each represented by a normal (dominant) and a mutant (recessive)...
#8 & #9
8. Three genes, each represented by a normal (dominant) and a mutant (recessive) allele, assort independently of one another. The cross of a homozygous (A/A; B/B; C/C) normal strain with the triply mutant strain (a/a; b/b; c/c) will produce an F1 progeny. The selfing of the F1 progeny produces the following progeny phenotypes. Determine what fractions of the F1 selfing will be of the phenotypes indicated below. Show the multiplication work. (a) Al-; B/-; c/c (b) aabbcc...
1. You have a male who displays the mutant phenotype (and thus carries the mutant allele)...
1. You have a male who displays the mutant phenotype (and thus carries the mutant allele) for the Ckesslj gene, which is located on the mitochondrial DNA. He mated with an unaffected female and has generated 3 offspring (2 females and 1 male). Draw out this pedigree, making sure you correctly draw/identify affected and unaffected individuals based on the information you have available to you. For your affected male at the beginning of the story, which of his parents is...
a) In your own words and referring to phenotypes, not proteins, explain what a conditional mutant is. Include an explanation of the terms permissive and non-permissive conditions. That is, give the phenotype in permissive conditions, and give the phenotype in non-permissive conditions. b) In your own words and referring to proteins, not phenotypes, explain what a conditional mutant is. Include an explanation of the terms permissive and non-permissive conditions. That is, describe the protein in permissive and non-permissive conditions. c)...
As a student project, you have isolated six new mutant strains
of E. coli with altered behavior of the lactose operon. The strains
are listed in the table below, together with their phenotypes (with
regard to significant ?-galactosidase synthesis) in three specific
situations.
Columns 1 and 2 present the phenotypes of each mutant haploid
strain. In column 1, the mutant is in an otherwise wild-type
genome. In column 2, the genome also carries a nonsense-suppressor
mutation (that is not present...
3. Initial cross: Now become familiar with the phenotype of Cy/Pm D/Sh fties and with the phenot of the mutant stock of flies your instructor has chosen for you to identify as to linkage group To locate the selected mutant gene in its linkage group or chromosome, roceed as follows: Select virgin females homozygous for the mutant gene arbitrarily designate the allele as m) that you are to locate. Mate such virgin mutant females to Cy/Pm D/Sb males. 4. What...
Match the following phenotypes with the mutation that would be the most likely to be its cause. The mutant proteins are listed below, followed by the protein domain that is mutated in each case, followed by the amino acid change that is a result of the mutation Try to answer each question by using the following reasoning: if you observe a phenotype, then that could be due to a mutation in protein in which the domain has had an amino...
#8 & #9
8. Three genes, each represented by a normal (dominant) and a mutant (recessive) allele, assort independently of one another. The cross of a homozygous (A/A; B/B; C/C) normal strain with the triply mutant strain (a/a; b/b; c/c) will produce an F1 progeny. The selfing of the F1 progeny produces the following progeny phenotypes. Determine what fractions of the F1 selfing will be of the phenotypes indicated below. Show the multiplication work. (a) Al-; B/-; c/c (b) aabbcc...
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