A plant has a dominant red (R) and reces- sive white (r) allele for flower color....
In a species of plant, two genes control flower color. The red allele (R) is dominant to the white allele (r); the color producing allele (C) is dominant to the non color producing allele (c). You suspect that either an rr homozygote or a cc homozygote will produce white flowers. In other words, rr is epistatic to C, and cc is epistatic to R. to test your hypothesis, you allowed heterozygous plants (RrCc) to self fertilize and count the offspring....
Flower color is incompletely dominant in snapdragons. If a white-flowered plant (WW) is crossed with a red-flowered plant (RR), all of the offspring are pink (RW). What is the probability of getting pink-flowered offspring from two pink-flowered parents? Show your work. 1 point Probability of getting pink-flowered offspring: __________________ % Reminders about human blood type genetics. • ABO blood types o A and B alleles are co-dominant o A allele is dominant to O allele o B allele is dominant...
In wild petunias, the allele for red flower color (R) is dominant over the allele for white flower color (r). We sample a population and find 240 plants have white flowers and 85 have red flowers. If the population is in HWE, what are the allele frequencies of R and r in this population? How many of the 85 plants that have red flowers are homozygous and how many are heterozygous at the flower color locus?
In wild petunias, the allele for red flower color (R) is dominant over the allele for white flower color (r). We sample a population and find 750 plants have white flowers and 270 have red flowers. If the population is in HWE, what are the allele frequencies of R and r in this population? How many of the 270 plants that have red flowers are homozygous and how many are heterozygous at the flower color locus? Show your work and...
In a flowering plant, red flowers are dominant over white flowers, and short plants are dominant over tall plants. A short plant with red flowers was self-fertilized and the phenotypes for the resulting progeny recorded (see below). Based on the observed numbers, you propose the hypothesis that this dihybrid cross follows a 9:3:3:1 phenotypic ratio, whereby Mendel's laws apply. Based on this hypothesis, you calculated the expected number of progeny for each phenotype (see below). Phenotype Observed Number of Plants...
Table 1: Mendel's Traits and Symbols for Pea Plants Traits Symbol Symbol Dominant Allele Round Yellow Smooth Green Tall Axial Seed Shape Seed Color Pod Shape Pod Color Plant Height Flower Position S Recessive Allele Wrinkled Green Constricted Yellow Short Terminal а Refer back to Table 1 on the first pa abie 1 on the first page of this assignment to answer the following two questions. Use the appropriate symbols and phenotypes in your answer, 1. Show the genotypes of...
2. A Pea plant that is Homozygous Dominant for purple flower color and Heterozygous for dark green leaves is crossed with another pea plant that is Heterozygous for both purple flower color and dark green leaves Let R = Purple flower color and r = white flower color Let D = Dark Green leaves and d = light green leaves Data Collection/Selection Using the information above, write the parent genotypes and gametes. Not all blanks may be used. Parent Genotypes:...
1) What are homologous chromosomes? What does it mean that they are considered homologous? (2 pts) 2) What is an allele? Describe the difference between dominant and recessive alleles? (2 pts) 3) Imagine that there is a species of flower whose phenotype is either white or red. The red allele (R) is dominant and the white allele (r) is recessive. If you see a white flower, what is its genotype? Explain your reasoning. (1 pts) If you see a red...
1. A plant with red flowers is crossed with a white-flowered plant of the same species. All the seeds, when grown, produce plants with red flowers. Assuming that the flower color is controlled by a single pair of alleles, which allele is dominant and which is recessive? 2. How does inbreeding increase the incidence of recessive disorders in a population? 3. Why does an individual always have only two alleles for a given gene? 4. In cats, the allele (S) for short fur...
15. The gene for petal color in a flower has incomplete dominance, so that individuals with two Al alleles (AIA) are red, individuals with two A2 alleles (A2A2) are white, and individuals with one of each allele (AIA2) are pink. In a cross between a red flower and a white flower, what is the probability of getting a pink offspring? (2 points) In a cross between a red flower and a pink flower, what is the probability of getting a...