a. Describe the process of crossing-over during meiosis. b. Explain the importance of crossing-over. (a) What is crossing over? (b) How is meiosis related to this phenomenon? How do you replicate meiosis with crossing over? For meiosis, discuss crossing...
(c)Explain the importance of meiosis in the production of gametes. 相关知识点: 试题来源: 解析 1.halves the chromosom number2.to produce a haploid nucleus3.allows genetic variation (in gametes )4.through dependen ssortment5.through crossing over ...
Genetic variation results from independent assortment, crossover of homologs, and random fertilization. Explain how crossing over and independent assortment provides variation and improves the chances of a species' survival. Does 1 gene code for 1 trait? Explain. ...
A theoretical understanding of generalization remains an open problem for many machine learning models, including deep networks where overparameterization leads to better performance, contradicting the conventional wisdom from classical statistics. Here, we investigate generalization error for kernel regression,...
In general, hybrid vigor refers to the higher performance of an F1 hybrid over the mean of the two parents. In agricultural sense, the F1 should outper- form the better parent to be useful. Heterosis has also been applied to adaptive traits like increased fecundity, viability and resistance ...
Multimedia Mail Over IP dial-peers are utilized to send emails to exchange servers. These are mostly utilized for t37 on-ramp / off-ramp faxing. These dial-peer types are not within the scope of this document. Note: The maximum number of dial-peers that can be configured on...
2B, C). In the probing test, the time periods of crossing the platform in the 50 mg/kg PS NPs group were significantly reduced compared with those of the control group (p < 0.05, Fig. 2D) and the time periods spent in the platform quarter of the different PS NPs groups were...
He did that work in the model system of the mouse spinal cord. As in the brain, there are distinct left and right sides that are bridged by axons that cross the midline. His work therefore helps to explain what guides those particular axons during crossing. ...
estimated to have happened around 1819 [99]. Regardless, this TE-mutant, responsible for a novel phenotype, proved highly advantageous in the rapidly changing environment of the times, demonstrating the importance of transposition events for subsequent microevolution, and by extension longer-term adaptat...
How does the process of crossing over create genetic variation? How and why are genetics and microbiology evolution related? Explain the method to find the enthalpy of the product and the reactant in a chemical reaction. Explain DNA replication as semi-conservative model using evidence from Messel...