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TLS Online TPP Program

#Question id: 13107

With the help of DNA fingerprinting which can be used to determine paternity. There are three babies (Baby A, Baby B and Baby C) in a maternity ward, and three sets of confused and worried parents. (Father and Mother #1 are a couple, as are Father and Mother #2, and Father and Mother #3.) 
You do each PCR reaction on chromosome 15 and load each one into a separate well of an agarose gel, and then run the gel.
 

 
Why is it that some people show two bands?

#SCPH01 Biochemistry
  1. The more repeats you have, the longer your DNA fragment is, and longer DNA fragments migrate more slowly in gels.
  2. They are homozygotes for the allele that cannot be cut.
  3. They are homozygotes for the allele that can be cut.
  4. They are heterozygotes, and possess one allele that can be cut and one allele that cannot be cut.
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TLS Online TPP Program

#Question id: 3927

#SCPH28 | Zoology

An operon is __
TLS Online TPP Program

#Question id: 8288

#SCPH05 I Biotechnology

Some beetles and flies have antler-like structures on their heads, much like male deer. The existence of antlers in beetle, fly, and deer species with strong male-male competition is an example of ________.
TLS Online TPP Program

#Question id: 3275

#SCPH28 | Zoology

When imbalances occur in the sex ratio of sexual species that have two sexes (that is, other than a 50:50 ratio), the members of the minority sex often receive a greater proportion of care and resources from parents than do the offspring of the majority sex. This is most clearly an example of ________.
TLS Online TPP Program

#Question id: 677

#SCPH06 I Botany

A helical wheel can be used to show
TLS Online TPP Program

#Question id: 1575

#SCPH01 Biochemistry

CpG unmethylated dinucleotides recognize by