Triploids are usually autopolyploids. They arise spontaneously in nature, but they can be constructed by geneticists from the cross of a 4n (tetraploid) and a 2n (diploid). Triploids are characteristically sterile due to

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#Question id: 5209

#Unit 11. Evolution and Behavior

If humans have 2,900 Mb, a specific member of the lily family has 120,000 Mb, and a yeast has ~13 Mb, why canʹt this data allow us to order their evolutionary significance

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#Question id: 9276

#Unit 6. System Physiology – Plant

The carotenoid b-carotene, whose structure and absorption spectrum at,

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#Question id: 11568

#Unit 7. System Physiology – Animal

In a lactating mammal, the two hormones that promote milk synthesis and milk release, respectively, are ________.

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#Question id: 4725

#Unit 7. System Physiology – Animal

Ptosis (droopy eyelid) may be inherited as a dominant human trait. Among 30 people who are heterozygous for the ptosis allele, 10 have ptosis and 20 have normal eyelids. What is the penetrance for ptosis?

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#Question id: 19925

#Unit 12. Applied Biology

The strategy of artificially programme cell death will be effective against which types of pathogen?

1. Obligate parasites 

2. Facultative parasites

Which of the above are correct?