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Explain why no two siblings inherit exactly the same combinationof alleles from their parents. Using chromosomes, genes, alleles,meiosis, crossing over, independent assortment, gametes, egg,sperm, fertilization, and zygote in the answer.
Explain why no two siblings inherit exactly the same combinationof alleles from their parents. Using chromosomes, genes, alleles,meiosis, crossing over, independent assortment, gametes, egg,sperm, fertilization, and zygote in the answer.
Casey DurganLv2
28 Sep 2019
Related textbook solutions
Related questions
Which statements pertaining to genetic variability are correct? Check all that apply (note that wrong answers will be deducted from right answers)!
| Crossing over is defined by the exchange of chromosome pieces during metaphase one of meiosis. |
| If a germ cell (i.e. parent cell before meiosis) had only two pairs of homologous chromosomes (i.e. 4 chromosomes total) there are 2 possible combinations of maternal and paternal chromosomes in gametes. |
| Siblings produced by sexual reproduction are different because sperms are different from one another and eggs are different from one another, and the combination of an egg and sperm is basically unique. |
| Random fertilization means that all possible combinations of eggs and sperm are equally likely, i.e. it is pure chance which sperm fuses with which egg. |
| Individual chromosomes contain thousands of genes. This means that during each crossing over event, more than one gene is exchanged between paternal and maternal chromosomes. |
