13566750
Description
Flashcards by J yadonknow, updated more than 1 year ago
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Created by J yadonknow
about 6 years ago
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| Question | Answer |
| Natural selection (3) | 1. Variance between individuals 2. Variance effects survival 3. Variance is inherited |
| Sexual selection variance (3) | 1. Variance between individuals 2. Variance affects reproductive success 3. Variance is inherited |
| Heritability of behaviour plotted | |
| "Gene for" calling rates giving rise to sexual selection | Traits for song are heritable "Gene for" calling rate exists Heritable variation in calling rate |
| What does "gene for" mean? | means heritable variance |
| What do female crickets prefer? | High chirp rate Long chirp duration Loud chirps |
| Environmental influences on call rate | whether there are males around or not (satellite males) Ambient 'c Presence of females |
| Basenji vs. cocker spaniel | tameness: low high One /dom. gene aggressive play: high low / 2 genes, recessive barking high low 2 dom. genes oestrus 12 months 6 months 1 recessive gene |
| What is "gene for" behaviour? | A genetic change giving rise to variance in behaviour |
| Artificial selection for behaviours may involve ___ | Pleiotropic effects on other traits e.g. domestic orca fin curls |
| What genes influence bird migration? | Gene controlling coricosterone Gene controlling melatonin Gene controlling magnetic cues |
| Gene controlling coricosterone influence (3) | Foraging activity Migratory fuelling rate Departure fuel load |
| Gene controlling melatonin influence (3) | Migratory restlessness Departure decisions Duration of migratory flights |
| Gene controlling orientation and magnetic cues influence | Migratory routes |
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