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The population pyramid on the left (India 2015) has a broad base and a narrowing top. Such a population pyramid indicates that ___________________. 

Imagine a newly discovered biological molecule that is mostly hydrophobic in its structure. It is made up of a glycerol head and three acid tails. How should this new molecule be classified?

Which trophic level would include a long-tailed rabbit?

Will’s blood type is A and Anni’s blood type is AB. What are all the possible blood types of their children?

________________ is relative survival and reproduction of a variant/trait.

Which trait is a quantitative trait in humans?

What type of inheritance occurs in a population with two different alleles in some individuals and a third allele in others?

Adrenoleukodystrophy (ALD) is an X-linked trait. What proportion of children of an ALD-affected male (XaY) and unaffected female (XAXA) would have ALD disorder? Hint: XA represents a normal allele. 

When a recessive allele is associated with a genetic disease in humans, what would heterozygotes be considered?

Which pairs of people would provide the most useful information to geneticists, regarding the heritability of a certain trait?