QUESTION 9 Mendel's law of independent assortment states that: Alleles segregate from each other into gametes in equally proportion. Genes segregate from each other into gametes in equally proportion. Dominant alleles are expressed in heterozygotes. Test crosses will produce equal proportions of each offspring class. during gamete formation, the segregation of alleles of one gene is independent of the segregation of alleles at another gene dihybrid test crosses will produce offspring phenotypic classes in a 9:3:31 ratio. QUESTION 10 You perform a test cross between a plant with round, yellow seeds (R-G-) and a wrinkly green plant (rrgg). The resulting offspring are 1:1 round yellow: wrinkly yellow. What is the genotype of the round yellow parent? RRGG R-G- RrGg RrGG RRGg
Added by Nicol-S S.
Close
Step 1
We know that the round yellow parent has the genotype R-G- because it has round and yellow seeds. Show more…
Show all steps
Your feedback will help us improve your experience
Sri K and 84 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
QUESTION 14 Consider two traits, and in turn two genes, in pea plants—seed color and seed shape. Assume that for color, yellow is dominant to green. For shape, round is dominant to wrinkled. Mendel cross fertilized a pea plant that was heterozygous for color and shape with another plant that was heterozygous for color and shape. The results of this cross can be demonstrated using a ________ cross, and these results led mendel to the law of ________. a. Test; segregation b. Monohybrid; segregation c. Monohybrid; independent assortment d. Dihybrid; independent assortment e. Dihybrid; segregation QUESTION 15 Coloration in calico cats (orange, white, black) is a sex linked trait. Calico cats are also almost always female. While males will often be only orange or black, females can express all colors simultaneously. A female calico cat showing all three colors would be genotypically ________ and the coloration would be due to ________. a. Homozygous dominant; dosage compensation b. Homozygous recessive; dosage compensation c. Heterozygous; dosage compensation d. Heterozygous; complete dominance e. Heterozygous; dihybrid cross
Madhur L.
10. In Mendel's original work on the genetics of garden peas, he found that yellow seed color (YY, Yy) is dominant over green seeds (yy) and that round seed shape (RR, Rr) is dominant over wrinkled seeds (rr). Mendel crossed true-breeding (homozygous) yellow, round seeded plants with green, wrinkled seeded plants. a. What are the genotypes of the parents? b. What are the gametes that can be produced from each parent? 1st Parent's gametes: 2nd Parent's gametes: Set up a Punnett Square to determine the genotypes and phenotypes that can result from this cross. c. What are the genotypes that result? In what ratio? d. What are the phenotypes that result? In what ratio?
Jackson M.
10. In Mendel's original work on the genetics of garden peas, he found that yellow seed color (YY, Yy) is dominant over green seeds (yy) and that round seed shape (RR, Rr) is dominant over wrinkled seeds (rr). Mendel crossed true-breeding (homozgous) yellow, round seeded plants with green, wrinkled seeded plants. a. What are the genotypes of the parents? b. What are the gametes that can be produced from each parent? 1st Parent's gametes: 2nd Parent's gametes: Set up a Punnett Square to determine the genotypes and phenotypes that can result from this cross. c. What are the genotypes that result? In what ratio? d. What are the phenotypes that result? In what ratio?
Evelyn D.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD