If the egg is fertilized, which hormone is essential in
allowing zygote develop and continue on its process until
it implants in the uterus (HINT: this is the pregnancy
hormone)?

1.LH
2.progesterone
3.estrogen
4.FSH

Suppose a scientist measures the amount of dna per cell of a particular diploid species at various stages of meiosis. she finds that the meiotic cells contain 3.7 pg , 7.3 pg , or 14.6 pg of dna. match each stage of the cell cycle to the corresponding amount of dna contained within a cell at that stage.

Which of the following best describes the purpose of technology?

Which best describes how the common cold spreads in the human body? a bacteria burst out of normal cells killing them b viruses replicate inside respiratory cells c bacteria inject dna into normal cells d viruses insert dna into bacteria