3. jane has noticed that both her parents have free earlobes and she has an attached earlobe.
she learns that she is homozygous recessive (aa) for her attached earlobes. what are the
genotypes of her parents?

The genotypes of her parents are (Aa) respectively.

Explanation:

Both of her parents are Heterozygous meaning that they both have two different alleles.

Jane had a 25% chance to get an attached earlobe and a 75% to get free earlobes.

If one of her parents had a homozygous dominant (AA) than Jane would had a 0% chance to get an attached earlobe.

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation: