Answer:
Mother (with severe discoloration of tooth enamel) --> bob and Gladys.
From bob --> 4 daughters.
From Gladys --> 2 boys and 1 girl.
Explanation:
Mother with severe discoloration of tooth enamel transferred this trait to her offspring i. e. bob and Gladys. From bob, this trait is transferred to his 4 daughters while Gladys has 2 boys and 1 girl has this type of tooth enamel. This discoloration of tooth enamel comes from the women to their children and this characteristics is transferred from one generation to another generation.
Answer:
ACDB (or BDCA)
Explanation:
The linked genes A and B have a greater frequency of recombination (40%) and therefore they are found furthest away on the chromosome. Conversely, the smaller distance is between D and B, which exhibit a lower frequency of recombination (10%), while C is localized at the same physical distance of both A and B (20%), so the physical map is ACDB.
Physical map:
A--------C-----D-----B
[ 20 ][ 10 ][ 10 ]
The
first observation was that, natural selection might itself be variable because
it is dependent with the different seasons the environment have. Second, the
frequency of small-beak depth Geospiza fortis became lesser on an island when a
large-beak-depth was introduced because the large-beak-depth species has
greater survival rate especially during dry season were they can eat larger and
harder seeds as compare to the small-beak-depth birds.
I think the answer is, Echocardiograph :)
