How many genes are involved in determing these flower colors?
How many genes are involved in determining these flower colors? Which genotypic combinations produce which phenotypes?
Homework Answers
R = allele for red (cyanidin)
r = allele for colorless
RR-----RED
Rr------purple, rr-white
Rr------purple x Rr------purple
Gametes R r
R RR RED Rr purple
r Rr purple rr white
1:2:1-------------
(31 red): 94 (purple): 43(colorless)
In sweet peas, two genes (genes A and B) control flower color. The dominant alleles of...
In sweet peas, two genes (genes A and B) control flower color. The dominant alleles of both genes produce enzymes that function in the biochemical pathway shown to convert colorless precursors to a purple pigment. The recessive alleles do not produce enzyme. Therefore, at least one dominant allele of both gene A and gene B are required for purple flowers. Answer the questions about this biochemical pathway. ΑΑ, Αα BB, Bb Enzyme A Enzyme B Colorless precursor 1 Colorless precursor...
1. In loppins (fictitious diploid invertebrates), ear shape is controlled by two genes with two alleles...
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Several genes are involved in determining kernel color and the effects of their alleles are outlined...
Several genes are involved in determining kernel color and the effects of their alleles are outlined in the table below. Relationship Trait Endosperm Color Y>y Aleurone Color R> C'> > Aleurone Color Inhibitor Genotype Phenotypic Effect Yellow Endosperm White endosperm Purple Aleurone Colorless aleurone No aleurone color in the presence of color alleles like R CC or Cc Aleurone Color in the presence of color alleles like R Colorless aleurone layer in the presence of color genes like R No...
(1) The hardy geranium, Geranium lanuginosum, is native to the Himalayas and is widely cultivated due...
(1) The hardy geranium, Geranium lanuginosum, is native to the Himalayas and is widely cultivated due to its brilliant blue flowers, but flowers can be dark blue, light blue, speckled blue, and white. You have identified 2 genes involved in flower color. The alabaster gene catalyzes the conversion of a colorless precursor into a light blue pigment. The amount of pigment that is produced is determined by the number of functional copies of the alabaster gene. Normally, the pigment is...
The snapdragon flower in Tennessee and Alabama are both white. When these two strains of snapdragon...
The snapdragon flower in Tennessee and Alabama are both white. When these two strains of snapdragon were crossed, the resulting F1 produces purple-color flower. When the F1 was self-crossed, the F2 progeny were 540 purple and 420 white. 16. What kind of inheritance pattern is this? A. recessive epistasis B. complete dominance C. dominant epistasis D. codominance E. complementation 17. What is the genotype of the F1 progeny? (let’s assume two involved genes are BB and DD) A. BBdd B....
Hello, I just need someone to check my answer: The answer I choose are in bold...
Hello, I just need someone to check my answer: The answer I choose are in bold points. 1. What was the most significant conclusion that Gregor Mendel drew from his experiments with pea plants? Recessive genes occur more frequently in the F1 generation than do dominant ones Traits are inherited in discrete units, and are not the results of "blending" There is considerable genetic variation in garden peas Genes are composed of DNA 2. In a particular plant, two genes...
7. If offspring exhibit a 3:1 phenotypic are the parents' genotypes? f purple flower color in...
7. If offspring exhibit a 3:1 phenotypic are the parents' genotypes? f purple flower color in a plant is controlled by the allele Rand white flower.com by the allele, which flower color is dominant? and white flower color is controlled 9. If a heterozygous purple flowered plant is crossed with a white flowered plant w phenotypes of their offspring? as 10. If the offspring of a cross are 50 purple-flowered plants and 14 white-flowered plants, what are the genotypes of...
Mendelian Genetics The gene involved in the disease Sickle Cell Anemia (SCA) is on human chromosome...
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Match the following terms with the appropriate description below: a. alleles b. autosomes c. dominant allele...
Match the following terms with the appropriate description
below:
a. alleles b. autosomes c. dominant allele d. genotype e.
heterozygous f. homozygote g. phenotype h. recessive allele i. sex
chromosomes
1. ________________ genetic make-up
2. ________________ how genetic make-up is expressed
3. ________________ chromosomes that dictate most body
characteristics
4. ________________ alternative forms of the same gene
5. ___________an individual bearing two alleles that are the same
for a particular trait 6. ________________ an allele that is
expressed, whether in...
1) Write a Reaction equation using 4- aminobenzenesulfulfonic acid (aniline derivative) and 8-ani...
1) Write a Reaction equation using 4- aminobenzenesulfulfonic
acid (aniline derivative) and 8-anilino-1-naphthalenesulfonic acid
(coupling agent). Write the mechanism.
SYNTHESIS OF AZO DYES INTRODUCTION Humans' love of color dates back almost to prehistoric times, yet it is not actually until the modern era that the full range of the rainbow has been accessible to the majority of people irn their clothes and other textiles. Ancient or medieval times have often been described as being quite splendid with their "tyrian purple"...
In sweet peas, two genes (genes A and B) control flower color. The dominant alleles of both genes produce enzymes that function in the biochemical pathway shown to convert colorless precursors to a purple pigment. The recessive alleles do not produce enzyme. Therefore, at least one dominant allele of both gene A and gene B are required for purple flowers. Answer the questions about this biochemical pathway. ΑΑ, Αα BB, Bb Enzyme A Enzyme B Colorless precursor 1 Colorless precursor...
Several genes are involved in determining kernel color and the effects of their alleles are outlined in the table below. Relationship Trait Endosperm Color Y>y Aleurone Color R> C'> > Aleurone Color Inhibitor Genotype Phenotypic Effect Yellow Endosperm White endosperm Purple Aleurone Colorless aleurone No aleurone color in the presence of color alleles like R CC or Cc Aleurone Color in the presence of color alleles like R Colorless aleurone layer in the presence of color genes like R No...
(1) The hardy geranium, Geranium lanuginosum, is native to the Himalayas and is widely cultivated due to its brilliant blue flowers, but flowers can be dark blue, light blue, speckled blue, and white. You have identified 2 genes involved in flower color. The alabaster gene catalyzes the conversion of a colorless precursor into a light blue pigment. The amount of pigment that is produced is determined by the number of functional copies of the alabaster gene. Normally, the pigment is...
7. If offspring exhibit a 3:1 phenotypic are the parents' genotypes? f purple flower color in a plant is controlled by the allele Rand white flower.com by the allele, which flower color is dominant? and white flower color is controlled 9. If a heterozygous purple flowered plant is crossed with a white flowered plant w phenotypes of their offspring? as 10. If the offspring of a cross are 50 purple-flowered plants and 14 white-flowered plants, what are the genotypes of...
Match the following terms with the appropriate description
below:
a. alleles b. autosomes c. dominant allele d. genotype e.
heterozygous f. homozygote g. phenotype h. recessive allele i. sex
chromosomes
1. ________________ genetic make-up
2. ________________ how genetic make-up is expressed
3. ________________ chromosomes that dictate most body
characteristics
4. ________________ alternative forms of the same gene
5. ___________an individual bearing two alleles that are the same
for a particular trait 6. ________________ an allele that is
expressed, whether in...
1) Write a Reaction equation using 4- aminobenzenesulfulfonic
acid (aniline derivative) and 8-anilino-1-naphthalenesulfonic acid
(coupling agent). Write the mechanism.
SYNTHESIS OF AZO DYES INTRODUCTION Humans' love of color dates back almost to prehistoric times, yet it is not actually until the modern era that the full range of the rainbow has been accessible to the majority of people irn their clothes and other textiles. Ancient or medieval times have often been described as being quite splendid with their "tyrian purple"...
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