Directions: Type your answer in the box. You may use numerals or words.
Examine the Punnett square below, which represents a dihybrid cross of two rose bushes.
RT Rtr rt
RT RRTT RRTU RITT RrTt
Rt RRT RRt RrTt Rett
T RITT RrTt TT Tt
it RrTt Rrtt rrtt rrtt
How many different genotype variations are possible in the offspring of these crossed rose bushes?

humans, along with other animals and plants, have linear chromosomes that are arranged in pairs within the nucleus of the cell. the only human cells that do not contain pairs of chromosomes are reproductive cells, or gametes, which carry just one copy of each chromosome.

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.