The diagram below shows a homologous chromosome pair from a plant cell. The positions of three genes are marked, and alleles for traits corresponding to the genes are indicated.
For which traits is the plant heterozygous? Select one or more pairs of alleles as your answer.
Aa - flower location
TT-plant height
dD-seed pod shape
The plant is heterozygous for the traits flower location (Aa) and seed pod shape (dD).
According to Mendel's Law of Segregation, meiosis involves the separation of a parent organism's alleles in order to form gametes. Since the alleles separate into different gametes, only one allele passes from each parent on to an offspring. This segregation of alleles during meiosis
A.
increases the genetic variability of the offspring.
B.
increases the chance that an offspring will receive a dominant allele.
C.
decreases the genetic variability of the offspring.
D.
decreases the chance that an offspring will receive a dominant allele.
Jennifer is trying to determine the blood type of her parents for biology class. She knows that her blood type is A.
After asking her mother, she finds out that her mother's blood type is A. However, her father cannot remember his blood type.
Which of the following blood types could her father have?
I. A
II. B
III. AB
IV. O