If you are given an assignment to select for a completely dominant trait or trait that...
If you are given an assignment to select for a completely dominant trait or trait that the genes display no dominance, which would be easier to select against, why?
Homework Answers
A completely dominant trait would be easier to select as it is easier to check the genotype and phenotype of an individual that shows complete dominance.
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If you are given an assignment to select for a
completely dominant trait or trait that...
1) Select the true statements about dominant and recessive genes, assuming complete penetrance of the genotype....
1) Select the true statements about dominant and recessive genes, assuming complete penetrance of the genotype. Circle all that apply. (1.5) For an offspring to be phenotypically dominant for a trait, at least one parent will show the trait. For an offspring to be phenotypically recessive for a trait, at least one parent will show the trait. In incomplete dominant or codominant traits, heterozygotes will have a different phenotype than either homozygote. If both parents show a recessive trait, then...
1.Which of the following crosses would always result in offspring that only display the dominant phenotype?...
1.Which of the following crosses would always result in offspring that only display the dominant phenotype? a.TT x tt b.Tt x Tt c.TT x TT d.both TT x tt and TT x TT 2.What are alleles? a.genes for different traits, such as hair color or eye color b.alternative forms of a gene for a single trait, such as blue eyes or brown eyes c.the locations of genes on a chromosome d.recessive forms of a kind of characteristic carried by genes...
‘A’ at gene 1 is completely dominant to ‘a’, and ‘A’ encodes stiff ears, while ‘a’...
‘A’ at gene 1 is completely dominant to ‘a’, and ‘A’ encodes stiff ears, while ‘a’ encodes floppy ears ‘B’ at gene 2 is completely dominant to ‘b’ and ‘B’ encodes tall individuals while ‘b’ encodes short individuals. The genes do not interact and do assort independently. Given this, what genotypic and phenotypic ratios do you expect from an AaBb vs. AaBb cross?
Two adults with a completely penetrant version of piebald spotting (a mendelian trait, where the phenotype...
Two adults with a completely penetrant version of piebald spotting (a mendelian trait, where the phenotype is patches of skin that lack pigment) have one child who has this trait and a second who does not: How is it inherited Autosomal dominant I got this question wrong on one of my exams and my professor said it was autosomal dominant, but I don't really understand why. What information led you to this answer? What are the genotypes of the parents?...
What is the probability that for a particular trait, two heterozygous parents will both contribute a...
What is the probability that for a particular trait, two heterozygous parents will both contribute a recessive allele to their child? For a typical Mendelian trait with complete dominance how many different phenotypes are possible? For alleles that display incomplete dominance, how many phenotypes are possible? Some phenotypes appear to be expressed on a continuum. Several traits in this lab demonstrate this. If most genes have only two alleles, how can some phenotypes be so variable? Chin shape genes are...
trait. 8 A trait coded for by genes on chromosomes 1 through 22 is a/an 9...
trait. 8 A trait coded for by genes on chromosomes 1 through 22 is a/an 9 A trait coded for by either the X or the Y chromosome is a/an 10 A genetically simple trait is coded for by alleles at only 11 What is the term for a trait coded for by alleles at multiple loci? locus. trait. trait. 12 if the various phenotypes of a trait can be placed into categories, it is a/an 13 If you can...
True or False: there can be carriers for conditions that are inherited through dominant alleles, as...
True or False: there can be carriers for conditions that are inherited through dominant alleles, as well as those inherited through recessive alleles. Select one: True False Which of the following is NOT true regarding dominance/recessiveness relationships of alleles? Select one: O a. The trait of the recessive allele can be expressed but is not evident in a heterozygote. O b. Dominant alleles are not necessarily more common in a population than recessive alleles. O c. They range from complete...
1. In the P generation, whena homozygous dominant trait is crossed with a homozygous recessive trait,...
1. In the P generation, whena homozygous dominant trait is crossed with a homozygous recessive trait, all the Figeneration will show the dominant trait. What will be the genotype and phenotype ratio in the F2 generation when the Fi generation is crossed? 2 In humans, brown eyes (B) are dominant over blue (b). A brown-eyed man marries a blue-eyed woman and they have three children; two of the children have brown eyes and one has blue eyes. Draw the Punnett...
Assignment: Inheritance Background: The images above shows an individual with a common thumb variant (recessive trait)...
Assignment: Inheritance
Background: The images above shows an
individual with a common thumb variant (recessive trait) and one
with brachydactyly type D (dominant trait). The reduced length and
increased girth of the distal phalanx in brachydactyly type D has
to do with a mutation on HOXD13 (part of the hoxD gene cluster
on Chromosome 2) that effects its pattern of development.
Your question: Considering that brachydactyly type D is
controlled by a dominant allele, will it replace the common
recessive...
5:If you are comparing two mRNA sequences, and you notice that the final 16 nucleotides all...
5:If you are comparing two mRNA sequences, and you notice that the final 16 nucleotides all differ, which of the following would be the best conclusion? A: Frameshift. B:Missense. C:No option is correct. D:Silent mutation. 7:What type of mutation changes a nucleotide, but does not change the amino acid sequence? A:Nonsense. B:Insertion. C: Deletion. D: silent substitution. 8:Flowers with homozygous dominant genotype are yellow, and flowers with homozygous recessive genotype are red. The offspring of those two will have a...
trait. 8 A trait coded for by genes on chromosomes 1 through 22 is a/an 9 A trait coded for by either the X or the Y chromosome is a/an 10 A genetically simple trait is coded for by alleles at only 11 What is the term for a trait coded for by alleles at multiple loci? locus. trait. trait. 12 if the various phenotypes of a trait can be placed into categories, it is a/an 13 If you can...
True or False: there can be carriers for conditions that are inherited through dominant alleles, as well as those inherited through recessive alleles. Select one: True False Which of the following is NOT true regarding dominance/recessiveness relationships of alleles? Select one: O a. The trait of the recessive allele can be expressed but is not evident in a heterozygote. O b. Dominant alleles are not necessarily more common in a population than recessive alleles. O c. They range from complete...
Assignment: Inheritance
Background: The images above shows an
individual with a common thumb variant (recessive trait) and one
with brachydactyly type D (dominant trait). The reduced length and
increased girth of the distal phalanx in brachydactyly type D has
to do with a mutation on HOXD13 (part of the hoxD gene cluster
on Chromosome 2) that effects its pattern of development.
Your question: Considering that brachydactyly type D is
controlled by a dominant allele, will it replace the common
recessive...
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