Species A has 2 n = 10 chromosomes. Species B has 2 n = 40 chromosomes. On average, will two randomly selected genes from species A be more likely, less likely, or equally likely to assort independently than two randomly selected genes from species B? Explain your reasoning.

As the number of generations increases in a population, it would be expected that O a. The number of meiotic recombination events would increase and linkage disequilibrium would decrease O b. The number of meiotic recombination events would decrease and linkage disequilibrium would increase O c. The number of meiotic recombination events would decrease and linkage disequilibrium would decrease O d. The number of meiotic recombination events would increase and linkage disequilibrium would increase

Species I has 2n = 8 chromosomes and species II has 2n = 14 chromosomes. What would the expected chromosome number be in an individual organism of species I with autotetraploidy? 22 16 21 9 15 O O O O

A fruit fly was found to be heterozygous for a paracentric inversion. However, obtaining flies that were homozygous for the inversion was impossible even after manyattempts. What is the most likely explanation for this inability to produce a homozygous inversion?

For practice construct a Genetic map with three genes in Arabidopsis plants. A short plant (hy) is recessive to tall plant (HY), a red flower (r) is recessive to white flower (R); and long pollen (po) is recessive to oval shaped pollen (PO). You can come up with arbitrary number of progenies for each class of offspring (follow the numbers like in Fig. 7.14) ( please help, I dont understand what/how to do this)

Species I is diploid (2 n = 4) with chromosomes AABB; related species II is diploid (2 n = 6) with chromosomes MMNNOO. Give the chromosomes that would be found in individuals with the following chromosome mutations: Q. Allotetraploidy including species I and II.

Species I is diploid (2 n = 8) with chromosomes AABBCCDD; related species II is diploid (2 n = 8) with chromosomes MMNNOOPP. What types of chromosome mutations do individuals with the following sets of chromosomes have? Q.AABBCCDDMNOP

In c. elegans, genetics model organism, movement problems (unc) and small body size (sma) are encoded by two mutant alleles that are recessive to those that produce wild-type traits (unc+ and sma+). A worm homozygous for movement problems and small body is crossed with a worm homozygous for the wild-type traits. The F1 have normal movement and normal body size. The F1 are then crossed with worms that have movement problems and small body size in a testcross. The progeny of this testcross is: Normal movement, normal body size            210 Movement problems, normal body size          9 Normal movement, small body size                 11 Movement problems, small body size           193   a)From the test cross results, can you tell if the two genes are on the same chromosome or not? Explain your reasoning.   b)What phenotypic proportions would be expected if the genes for round eyes and white body were located on different chromosomes?  (please explain hot to get to these conclusions)

Species I is diploid (2n=4) with chromosomes YYZZ; related species II is diploid (2n=6) with chromosomes RRSSTT.  The following chromosomes are found in individuals:  YYYZZZ. What chromosome mutation occurred? Group of answer choices Monosomy in species I Autotriploidy in species I Allotetraploidy including species I and II Tetrasomy in species I for chromosome A

In a particular plant species, a cross between pure breeding strains both of which have white flowers produces F1 progeny with purple flowers. The F2 generation subsequently produced resulted in 450 plants with purple flowers and 350 with white flowers. a) State the phenotypic ratio in the F2 progeny. b) Deduce the genotype of purple F2 plants. c) Deduce the genotype of F1 plants. d) Deduce the genotype of two parental plants.