In a transformation experiment involving a wild type bacterial strain with a recipient strain with mutations in genes a, b, c, and d, pairs of genes were analyzed for cotransformation with the following results: Gene Pair Cotransformation
a+ b+ no
a+ c+ yes
a+ d+ no
b+ c+ no
b+ d+ yes
c+ d+ yes

Required:
What is the linear order of these genes relative to each other?

1. a-c-d-b
2. d-a-c-b
3. a-d-b-c
4. a-b-c-d

What sentence best supports the statement that hormones are involved in the regulation of homeostasis? a. the hormone erythropoeitin increases the production of red blood cells when oxygen levels are low. b. the hormone oxytocin promotes labor contractions of the uterus during childbirth. c. the hormone melatonin induces sleep and its production is slowed by exposure to light. d. the hormone cortisol suppresses the immune system and is produced when the body is under stress.

Answers to mastering biology drag the labels to their appropriate locations to complete the punnett squares for morgan's reciprocal cross. drag blue labels onto the blue targets to indicate the genotypes of the parents and offspring. drag pink labels onto the pink targets to indicate the genetic makeup of the gametes (sperm and egg). labels can be used once, more than once, or not at all. hints

In two sentences explain the differences of neutrophil and macrophage