By the way, my genetics homework is due wednesday, november 13th at 4: 10 pm. i would appreciate it if you could walk me through all of the steps to solve all parts of this problem. in the garden pea, orange pods (g) are recessive to green pods (g), and sensitivity to pea mosaic virus (m) is recessive to resistance to the virus (m). a true-breeding plant with orange pods and sensitivity to the virus was crossed to a true-breeding plant with green pods and resistance to the virus. the f1 plants were then testcrossed to plants homozygous recessive for both traits. the f2 progeny counts are as follows: 160 have an orange pod color and are sensitive to the virus, 140 have a green pod color and are resistant to the virus, 107 have an orange pod color and are resistant to the virus, and 113 have a green pod color and are sensitive to the virus.
a. are these genes linked? give the chi squared value to test this hypothesis.
b. given your chi squared value and the degrees of freedom, should we reject the null hypothesis?

the fossil record provides evidence of a common ancestor to many species.

i believe the correct answer is the virus gets an envelope that contains host molecules when it leaves the host cell.

explanation:

during the bidding/release stage of a virus, it encapsulates itself with part of the membrane of the host cells in this case the cells of the monkey and is the reason as to why the scientist found the genetic material of the monkey on the viral cell surface.

further explanation

to understand this answer, we have to know the cycle a virus undergoes to replicate. a virus is basically a bunch of genetic material enclosed in a capsule and lacks any machinery or organelles to ensure their survival so they must enter a host cell in order to get the environment needed to survive. some viruses enter and lyse(destroy) the host cell after they have replicated and undergo the lytic cycle while some enter and leave the cell intact after replicating and these undergo a lysogenic cycle. to enter the cell, they undergo the first process called attachment by binding to specific receptors and co-receptors on the surface of the host cell. after attaching to the cell, they start the second phase called penetration where virus enters or is engulfed whole by the host cell through a process called endocytosis. it is the same process that a cell takes up materials it needs or pathogens around it. uncoating of the virus then happens after the virus has been engulfed and is the third stage. the virus then undergoes releasing of its genetic material in the host's matrix.   the materials then enter the nucleus and undergo biosynthesis by adding themselves in strands of rna being translated and then copies of the virus are produced in addition to the host genetic material. the material/newly formed viral material then undergoes assembly inside the host cell and form a capsule around them. the virus undergoes the last release/budding stage by binding to the host membrane and pushing outwards. in doing so when they tear away from the host membrane, they pick up the genetic material from the membrane of the host cell to form their envelope.

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level: high school

the answer is