would evolution occur without the events of meiosis and sexual reproduction?
yes there will be evolution but there will NO genetic variation
would evolution occur without the events of meiosis and sexual reproduction?
Eukaryotes pass genes down "vertically" from parents to offspring by meiosis and sexual reproduction. Prokaryotes pass genes down "vertically" as well by the simple method of fission. But prokaryotes also commonly transfer genes "horizontally" from one cell to another without reproduction. Is it true or false that this method of horizontal gene transfer can occur with the assistance of a virus?
why does sexual reproduction require both Meiosis and syngamy
Description Review 8 Meiosis and Sexual Reproduction Use complete sentences. 1. Summarize the role of meiosis in the human life cycle. 2. Compare sister chromatids to homologous chromosomes. 3. Identify two means by which meiosis results in genetically different gametes, and explain why this is important. 4. Compare the results/outcome of mitosis vs. meiosis. 5. How can a zygote can receive an abnormal chromosome number?
Question 27 6 pts Name three events during sexual reproduction and when in the process they occur that introduce genetic variety into the potential offspring.
Discuss asexual and sexual reproduction in terms of genetic diversity. How is meiosis-related to genetic diversity.
Which of the following statements is FALSE? a. In sexual reproduction, offspring receive two genes for every trait. b. Asexual reproduction produces clones. c. Sexual reproduction puts together new combinations of genes. d. In asexual reproduction, both meiosis and fertilization must occur during the life cycle. e. In asexual reproduction, the parent passes a complete set of genes to its offspring.
Place the events in order to form the sequence of events that occur during human reproduction, beginning with fertilization. Source Target = First cleavage of cells Trophoblast becomes the placenta Meiosis completed in egg Embryo grows until it becomes a fetus Implantation into uterine lining Human beta chorionic gonadotropin levels rise = Blastocyst formation = Fertilization
Meiosis and Sexual Reproduction 1. What does meiosis ensure? 2. Do you think there is anything wrong with a 94 year old fathering children (I don't mean physically but maybe genetically for the child?): 3. What cells does meiosis happen in? 4. Contrast diploid number and haploid number: 5. What does "homologous chromosomes mean? 6. Look at the karyotype in Figure 10.1 - how many pairs of chromosomes are there in a "normal human? Why are there 2 at each...
Meiosis produces haploid gametes, how is the diploid number restored in diploid organisms? Sexual reproduction resulting in fertilization Reverse Meiosis O Production of sister chromatids during S phase Synapsis
sexual reproduction in algae involves meiosis that results in the production of a) spores with twice as much DNA as the parent cell b) gamers with half the amount of dna as the parental cells c) spores with the same amount of dna as the pare t cells d) swarming calls with the same amount if dna as the parental cells