The recombinant offspring of the F2 generation were producedby crossing over that occurreda. during spermatogenesis in the parental generation males.b. during oogenesis in the parental generation females.c. during spermatogenesis in the F1 males.d. during oogenesis in the F1 females.

The recombinant offspring of the F2 generation were producedby crossing over that occurreda. during spermatogenesis in the parental generation males.b. during oogenesis in the parental generation females.c. during spermatogenesis in the F1 males.d. during oogenesis in the F1 females.

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Description: The recombinant offspring of the F2 generation were producedby crossing over that occurreda. during spermatogenesis in the parental generation males.b. during oogenesis in the parental generation females.c. during spermatogenesis in the F1 males.d. d

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter14: Human Inheritance

Section: Chapter Questions

Problem 2GP: Human females have two X chromosomes XX; males have one X and one Y chromosome XY. a. With respect...

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The recombinant offspring of the F2 generation were produced bycrossing over that occurreda. during spermatogenesis in the P generation males.b. during oogenesis in the P generation females.c. during spermatogenesis in the F1 males.d. during oogenesis in the F1 females. [Answer the multiple-choice questions based on the following experiment:P generation: True-breeding flies with red eyes and long wings werecrossed to flies with white eyes and miniature wings. All F1 offspringhad red eyes and long wings.The F1 female flies were then crossed to males with white eyes and miniaturewings. The following results were obtained for the F2 generation:129 red eyes, long wings133 white eyes, miniature wings71 red eyes, miniature wings67 white eyes, long wings]
When Thomas Hunt Morgan crossed his red-eyed F1 generation flies to each other, the F2 generation includedboth red- and white-eyed flies. Remarkably, all the white-eyed flies were male. What was the explanation forthis result? a. The gene involved is on the X chromosomeb. The gene involved is on the Y chromosomec. The gene involved is on an autosome, but only in malesd. Other male-specific factors influence eye color in fruit fliese. None of these is correct
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.
A,b and c please
When does crossing over usually occur, and what is the endresult?a. It occurs during prophase of meiosis I, and the end result isthe exchange of pieces between homologouschromosomes.b. It occurs during prometaphase of meiosis I, and the endresult is the exchange of pieces between homologouschromosomes.c. It occurs during prophase of meiosis I, and the end result isthe separation of sister chromatids.d. It occurs during prometaphase of meiosis I, and the endresult is the separation of sister chromatids.
During the observation of a baby the diagnosis of Down's syndrome was made. What is the main cause of this pathology? Select one: a. Trisomy on the 13-th chromosome. b. Trisomy on the 21-st chromosome. c. Trisomy on X chromosome. d. Monosomy on the 1-st chromosome. O e. Undivergence of sex chromosomes.
When Thomas Hunt Morgan crossed his red-eyed F1 generation flies to each other, the F2 generation included both red- and white-eyed flies. Remarkably, all the white-eyed flies were male. What was the explanation for this result? O The gene involved is on an autosome, but only in males. O The gene involved is on the X chromosome. O The gene involved is on the Y chromosome.
Which of the following statements is true? Select one: a. Nondisjunction during anaphase I or anaphase II will have no effect on the gametes formed. b. More gametes will be affected if nondisjunction occurs during anaphase I than if nondisjunction occurs during anaphase II. c. More gametes will be affected if nondisjunction occurs during anaphase II than if nondisjunction occurs during anaphase I. d. Nondisjunction during anaphase I or anaphase II will have the same effect.
Aneuploidies are deleterious for the individual because of what phenomenon?a. nondisjunctionb. gene dosagec. meiotic errorsd. X inactivation
In this image of the human karyotype: A. The sister chromatids have separated B. There are 46 pairs of chromosomes C. The DNA has already been replicated D. There are 23 pairs of autosomes E. None are true.
Down's syndrome, trisomy 21, is due to what likely problem during meiosis? Select one: a. Failure of the APC to add Ub to cohesins, so sister chromatids due not split correctly in anaphase II. b. DNA replication issues causing an additional third chromosome to be replicated. c. Overactive APC adding to many Ub to cohesins, so sister chromatids due not split correctly in anaphase II. d. Failure of the MPF to add Ub to cohesins, so sister chromatids due not split correctly in anaphase II.
Draw a haploid mitosis of the genotype a+ ; b.