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Does crossover between one pair of homologs affect the expected proportions of gamete genotypes? Why or why not? Does crossover between both pairs of chromosomes affect the expected gamete proportions
State whether the following is a regulation, acclimation, phenotypic plasticity or adaptation? 1) The loss of stomata in aquatic plants 2) The movement of a turtle from the shade into the sun
Describe the axon variables that can influence the speed at which an action potential is conducted in a mammalian neuron.Describe the mechanisms of integration of neural information.
Describe the types of refractory periods. How is the action potential propagated and conducted across the length of a membrane in a single direction only?
Derive the expression for effective population size under fluctuating N (i.e that Ne is the harmonic mean of the Ni's). You will want to start with the equation for the accumulation of identity by d
Describe what type of morphological characteristics you observed in your stained preparations. Were you able to see different characteristics than in the wet-mount preparations?
How can thermophilic bacteria survive in high temperature, if disulfide bonds in its protein is not the case. How do they keep their proteins from denaturing in high temperature?
How and why did Fair Meiosis evolve? I can hardly think that it provided a fitness advantage to the individual carrying the mutation. Why would it?Did it evolve through lineage selection?
We have lots of lily flowers inside our garden. Their flowers are open in day and closed in night. How do lilies sense day and night and open and close their flowers?
Rous sarcma virus (RSV) carries an oncogene called Src, which encodes an active tyrosine kinase that phosphorylates something else and causes unchecked cell proliferation.
What's the difference between Cytoplasmic pool and Granular storage pool when speaking about neurotransmitters and synaptic cleft.
What would make a mixed culture of 2 organisms appear pure on a streak plate?
Can't we add spores of the specific fungi to specific plant and enjoy the benefit of this association as we would not have to add many fertilizers ?
When the sinuses flare up, it can get very painful. What biological mechanisms cause the congestion and especially the pain associated with sinusitis?
Is there any biological reason why sleeping on one side versus another, or with a head pointed in some direction is beneficial for humans?
If I take my cells and take DNA out of them and insert only a small part of it having a sequence, say, AGTTC, and viral DNA with the same sequence, can my body distinguish between the two?
What is special about pigs that we are using them? Why can't we use monkeys or chimpanzees with whom we share a more recent common ancestor?
Does anyone knows how I can determine the direction of genes?
Are there insects that change their behavior upon detecting the nearby presence of other dead insects? If there are, can you provide an example?
Why does the composition of fat in animals vary? Is there an evolutionary advantage to producing fat that is less or more saturated?
Has it been demonstrated that the memory of human brain is just connections between neurons, not "long" molecules such as RNA or proteins?
Do you think that if we understand what areas of our brain are responsible for doing arithmetical tasks we may one day have the ability to improve someone's calculation skills by non-invasive method
how can we tell the difference between a sound in front of us and a sound behind us if pitch, volume and distance are all the same.
What method would you use to genotype SNPs in low quality samples?
Are venoms more advantageous for snakes and fish, or more expensive or dangerous to produce for the other taxa? Or is it connected to evolutionary history - is venom somehow more 'evolvable' for sna