With regard to linked genes on the same chromosome, whichof the following statements is false?a. Crossing over is needed to produce nonrecombinant offspring.b. Crossing over is needed to produce recombinant offspring.c. Crossing over is more likely to separate alleles if they arefar apart on the same chromosome.d. Crossing over that separates linked alleles occurs duringprophase of meiosis I.

With regard to linked genes on the same chromosome, whichof the following statements is false?a. Crossing over is needed to produce nonrecombinant offspring.b. Crossing over is needed to produce recombinant offspring.c. Crossing over is more likely to separate alleles if they arefar apart on the same chromosome.d. Crossing over that separates linked alleles occurs duringprophase of meiosis I.

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter8: Patterns Of Inheritance

Section: Chapter Questions

Problem 12RQ: In a cross between a homozygous red-eyed female fruit fly and a white-eyed male fruit fly, what is...

See similar textbooks

Similar questions

Based on the ideas proposed by Morgan, which of the followingstatements concerning linkage is not true?a. Traits determined by genes located on the same chromosome arelikely to be inherited together.b. Crossing over between homologous chromosomes can create newallele combinations.c. A crossover is more likely to occur in a region between two genesthat are close together than in a region between two genes that arefarther apart.d. The probability of crossing over depends on the distance betweenthe genes.e. Genes that tend to be transmitted together are physically located onthe same chromosome
The process of mitotic recombination involves the a. exchange of chromosomal regions between homologsduring gamete formation.b. exchange of chromosomal regions between homologsduring the division of somatic cells.c. reassortment of alleles that occurs at fertilization.d. reassortment of alleles that occurs during gameteformation.
You breed two monster parents (green, hairless) GGhh and ggHH (white, hairy) to produce F1 offspring (green, hairy). Genes G and H are on the same chromosome. a. What are the dominant phenotypes? b. What are ALL of the potential gamete genotypes that could be created by an F1? Clearly indicate the recombinant genotypes. c. Explain how recombinants are created. d. What are the potential offspring genotypes from the cross of a F1 monster with a homozygous recessive monster. e. From this test cross you get 152 green, hairless; 23 green, hairy; 148 white, hairy, and 27 white, hairless. Calculate the chi squared to test the independent assortment hypothesis and determine if these genes assort independently.
CC DD and cc dd individuals were crossed to eachother, and the F1 generation was backcrossed to thecc dd parent. 997 Cc Dd, 999 cc dd, 1 Cc dd, and 3 ccDd offspring resulted.a. How far apart are the c and d loci?b. What progeny and in what frequencies would youexpect to result from testcrossing the F1 generationfrom a CC dd × cc DD cross to cc dd?c. In a typical meiosis, how many crossovers occurbetween genes C and D?d. Assume that the C and D loci are on the samechromosome, but the offspring from the testcrossdescribed in part (b) were 498 Cc Dd, 502 cc dd,504 Cc dd, and 496 cc Dd. How would your answer to part (c) change?
A man has attached earlobes, whereas his wife has freeearlobes. Their first child, a boy, has attached earlobes.a. If the phenotypic difference is assumed to be due totwo alleles of a single gene, is it possible that the geneis X linked?b. Is it possible to decide if attached earlobes aredominant or recessive?
In a cross between a homozygous red-eyed female fruit fly and a white-eyed male fruit fly, what is the expected outcome? a. all white-eyed male offspring b. all white-eyed female offspring c. all red-eyed offspring d. half white-eyed make offspring
Human females have two X chromosomes XX; males have one X and one Y chromosome XY. a. With respect to X-linked alleles, how many different types of gametes can a male produce? b. A female homozygous for an X-linked allele can produce how many types of gametes with respect to that allele? c. A female heterozygous for an X-linked allele can produce how many types of gametes with respect to that allele?
How would one explain a testcross involving F1 dihybrid flies in which more parental-type offspring than recombinant-type offspring are produced? Group of answer choices A. The testcross was improperly performed B. The two genes are linked C. Both of the characters are controlled by more than one gene D. The two genes are linked but on different chromosomes E. Recombination did not occur in the cell during meiosis
When chromosomes are inherited from one generation to the next, they are inherited... A. Randomly, such that you might generate a gamete with chromosome 1 from your mother and chromosome 2 from your father B. Together, such that you are likely to generate gametes containing chromosomes from either your mother or your father C. Both A and B D. None of the above
A human individual is phenotypically female, but her interphase somatic nuclei show the presence of 2 Barr bodies. (a) How many X-chromosomes would you expect to see in her karyotype? (b) Explain your answer. (c) How many chromosomes would you expect to find in this female’s karyotype?
A boy with Down syndrome (trisomy 21) has 46 chromosomes. One parent and his two older sisters have a normal phenotype, but each have 45 chromosomes. a)Explain how this is possible. b)How many chromosomes do you expect to see in karyotypes of the parents? c)What term best describes this kind of chromosome abnormality? d)What is the probability the next child of this couple will have a normal phenotype and have 46 chromosomes? Explain your answer.
For a certain gene in a diploid organism, eight units ofprotein product are needed for normal function. Eachwild-type allele produces five units.a. If a mutation creates a null allele, do you think thisallele will be recessive or dominant?b. What assumptions need to be made to answer part a?