Answer:
C) The oxygen side has a partial negative charge and the hydrogen ends have partial positive charges.
If four different vntr alleles have frequencies of 1 in 10, 1 in 20, 1 in 50, and 1 in 500 in a population of 250 million, how many people would have all four alleles?.
Answer:
50
Explanation:
There are 50 persons in the population that have this pattern, with an occurrence frequency for the 4 alleles of 1 in (10x20x50x500) = 1 in 5,000,000.
Variable numbers tandem repeats, called VNTRs, are the repetitive sections of the DNA strand. The fundamental benefit of STR fingerprinting over VNTR fingerprinting is that it just needs a tiny quantity of pure DNA and a short DNA sequence to carry out its activities. The main purpose of STR fingerprinting is to precisely identify a given individual's genes fingerprint. Moreover, the variable number of tandem repeats (VNTR), are brief sequences (between 20 and 100 bp) whose repetition numbers vary at particular loci in the genome among several animals, notably humans. VNTR sequences differ in length across individuals within the same species or group, hence they are frequently employed as molecular identifiers to identify people, map QTLs (quantitative trait loci), establish evolutionary connections between people/cultivars/lines, etc.
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True or false life changes whether they are positive ir negative can cause stress
Answer: True.
Explanation:
It is true that life changes, whether they are positive or negative, can cause stress, so this statement is a true statement. It is more commonly known for negative things to cause stress, but positive things can cause stress too. This type of stress is sometimes known as eustress. Examples of eustress, or "positive" life changes causing stress, can include attending large events, dates, waiting for something exciting, etc.
In what ways are disturbances important for savanna ecosystems and the plants in them?
Answer:
Some large scale disturbances, such as drought, grass fires and grazing are considered to be driving forces in savanna ecosystems. These factors are also hypothesized to allow for a long-term coexistence of trees and grasses which is one of the distinguishing features of savanna ecosystems.
Explanation:
What organism is always found at the base of the blue chain?