Which aspect(s) of chromosome behavior is/are primarily responsible for the trem

Question

Which aspect(s) of chromosome behavior is/are primarily responsible for the tremendous amount of genetic variability associated with sexual reproduction? A. Segregation of sister chromatids at anaphase II. B. Segregation of homologous chromosomes at anaphase I. C. Crossing over between homologous chromosomes during prophase I. D. Independent alignment of different homologous on the E. Both crossing over between homologous chromosomes during prophase I and independent alignment of different homologous pairs on the metaphase I spindle. Aneuploidy is having a chromosome number that is not an exact multiple of the haploid number. A. True B. False Organisms with more than the normal number of full sets of chromosomes are known as A. aneuploids B. haploids C. polyploids D. unbalanced If a genetic characteristic is a dominant trait, the trait shows a vertical pattern of transmission. A True B) False If a trait is an X-linked dominant trait, all _____ of affected fathers are also affected. A daughters B. sons C. daughters and sons

Explanation / Answer

[ I am going to leave part I asked by you and will answer rest all the parts. I hope this helps. Thanks]

1. This statement is false. Aneuploids is the abnormal number of chromosomes in an indiviual.

2. The answer is option C. Polyploids are the organisms with more than normal chromosome set.

3. This statement is true. Vertical transmission means that the trait is transmitted in more than one generation. Dominant traits shows vertical transmission.

4. Answer is option A. All daughters will be affected.

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