Which of the following best describes a deletion mutation on a chromosome? O a chromosomal mutation that occurs when a chromosome segment is repeated so that the individual has more than two alleles for a certain gene
the exchange of chromosome segments between two nonhomologous chromosomes
Ο Ο
O a chromosomal mutation that occurs when a segment of a chromosome is turned 180 degrees
O a single break causing a chromosome to lose an end, or two simultaneous breaks leading to the loss of an internal chromosome segment
My

Answer is in the photo. I can't attach it here, but I uploaded it to a file hosting. link below! Good Luck!

tinyurl.com/wpazsebu

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.

i guess because there isn't enough love going around. < 3