Biology, 13.05.2021 22:20 marlandwilliams10
The so-called hypervariable regions (HV1 and HV2) of the human mitochondrial genome are sometimes used in forensic analysis. They are two noncoding regions of mtDNA, each approximately 300 bp, that show more variation in different people than any other DNA sequences. The DNA within HV1 and HV2 appears to accumulate mutations at ten times the rate of DNA sequences in the nuclear genome. Check all statements that correctly describe situations where it would be advantageous to use human nuclear DNA (as opposed to mtDNA) to identify individuals.
a. Very little DNA is recovered from the scene of a crime.
b. You want to determine which of two brothers is the father of a child.
c. You want to determine if two individuals are identical or fraternal twins.
d. You want to determine if the woman you've been told all your life is your mother is really your grandmother.
e. You want to determine if two people are first cousins.
Answers: 2
Biology, 21.06.2019 23:30
The table shows dates and appearance of index fossils. which rock layers can be dated most precisely? a) a layer containing both a fossil 4 and a fossil 3 b) a layer containing both a fossil 2 and a fossil 3 c) a layer containing both a fossil 1 and a fossil 4 d) a layer containing both a fossil 1 and a fossil 2
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Biology, 22.06.2019 06:10
You are working in the lab and are working with the same element but with varying isotopes of the element. you are working with c-11, c-13, c-14, and c-15. what is the average atomic mass of this element? (use periodic table) a- 12 b-15 c-14 d-13
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Biology, 22.06.2019 09:10
Research question: why are the carrots that grew on the left side of the garden larger than the carrots that grew on the right side of the garden? which hypothesis is based on this research question? a comparison of people with gardens to people without gardens will show who is likely to live longer. b. carrots are thought to be good for your eyesight and should be eaten regularly. c. carrots that are provided lots of sunlight grow to a larger size than carrots grown in the shade. d. eating fresh vegetables every day is a healthy thing to do.
Answers: 1
The so-called hypervariable regions (HV1 and HV2) of the human mitochondrial genome are sometimes us...
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