Biology, 21.10.2020 16:01 lucygperez9892
Edxcel alevel biology past papers: some of the blood plasma of individuals who have survived infection wtih Ebola can be collected. This can be used in the treatment of individuals currentlty infected with Ebola. Explain why the blood plasma from survivors can be used to treat new cases of Ebola infection.
Answers: 1
Biology, 22.06.2019 04:30
What is the similarities and differences between bacteria and eukaryote?
Answers: 3
Biology, 22.06.2019 09:00
The two tubes contain bromothymol blue. after 24 hours, what will the color of the water be in tube b? a. green (it won't change) b. yellow c. blue d. colorless (clear)
Answers: 1
Biology, 22.06.2019 09:20
Give examples of selective advantage of organism’s body part/organ
Answers: 1
Biology, 22.06.2019 16:30
You will create a molecular clock model for an arthropod gene. follow these guidelines to make your model: . your timeline will span from 90 million years ago to the present. the common ancestor in your model is an arthropod that lived 90 million years ago. the gene that you'll track codes for a protein in the species venom . the dna sequence youll track contains 10 nitrogen bases. you can choose the order of the bases and where the mutations occur. this gene mutates at a rate of approximately 0.76 base pairs every 17.1 million years. to build your model,/ calculate the estimated time period it takes for 1 base pair to mutate. the first time period will only show the common ancestor. at the beginning of the second time period, three lineages will diverge from the common ancestor, each with a different mutation in their gene sequences. the first and third descendant species will survive for the rest of the timeline. the second descendant species was extinct 50 million years ago. calculate how long it will take for one full base pair mutation to occur. explain your reasoning by constructing a mathematical equation
Answers: 2
Edxcel alevel biology past papers: some of the blood plasma of individuals who have survived infecti...
Mathematics, 25.01.2021 19:00
Biology, 25.01.2021 19:00
History, 25.01.2021 19:00
English, 25.01.2021 19:00
Mathematics, 25.01.2021 19:00
Mathematics, 25.01.2021 19:00
Mathematics, 25.01.2021 19:00
Chemistry, 25.01.2021 19:00
Mathematics, 25.01.2021 19:00
Geography, 25.01.2021 19:00