Biology, 17.09.2019 04:00 dashavasilisk
Aresearcher studies normal human fibroblast cells. they can be maintained in culture but die off after about 30 cell generations. unexpectedly, a colony of cells continues to survive and divide past 30 generations. which scenario is most likely true for these cells?
Answers: 3
Biology, 21.06.2019 16:30
Which best explains why viruses do not have special structures or enzymes that allow them to make their own food? viruses can use energy in living cells that they infect. viruses can replicate inside a host that they infect. viruses can cause contagious illnesses in host cells. viruses integrate their rna or dna into infected cells.
Answers: 1
Biology, 21.06.2019 18:00
What evidence did mendel find that supported his law of independent assortment? a. dominant traits are expressed when there is a dominant allele. b. traits do not affect the inheritance of other traits. c. some traits have three or four different alleles. d. plants and animals can both reproduce sexually.
Answers: 3
Biology, 21.06.2019 18:30
Asap timed! 1. ice core samples from glaciers ice caps contain bubbles of ancient atmosphere that are in layers based on age. what questions are scientists most interested in? a. how the amount of water vapor needed to make the ice has changed b. how the amount of ozone has changed over time.c. how the amount of ice in each layer has changed over time d. how the amount of carbon dioxide has changed over time 2. what produces milankovich cycles ? a. sunspots ams solar flare on the suns surface b. changes in the earths orbit c. gravitational changes bases on the position of the sun and the moond. cycles of vegetation that result in desert and rainforest conditions
Answers: 1
Biology, 21.06.2019 19:10
Which statement about inheritance is true? o girls get most of their traits from their moms, boys get most of their traits from their dads. o male offspring will always have an x-linked genetic disease if the mom is a carrier o fathers always determine the gender of the offspring in humans. o males never have y chromosomes.
Answers: 3
Aresearcher studies normal human fibroblast cells. they can be maintained in culture but die off aft...
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