Which statement describes the relationship between chromosomes, genes, and alleles? a. alleles move genes to a specific location on a chromosome. b. genes bind to sites on a chromosome. these sites are called alleles. c. alleles cause mutations, which are genes on part of a chromosome. d. alleles are different variations of a gene. genes are the specific sections of a chromosome.

emerald ash borer

the emerald ash borer is a green buprestid or jewel beetle native to north-eastern asia that feeds on ash species. females lay eggs in bark crevices on ash trees, and larvae feed underneath the bark of ash trees to emerge as adults in one to two years. hope this !

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.