TLS Online TPP Program

#Question id: 2879


Hybridization between mature mRNA and DNA can identify introns in eukaryotic genes. When mature mRNA produced by the insulin gene is hybridized with denatured chromosomal DNA, which of the following will most likely be observed?

#Unit 2. Cellular Organization
  1.  Hybridization of mRNA would occur with random sections of chromosomal DNA.

  2. Hybridization of mRNA with DNA would occur in a continuous stretch that is equal to the length of the mRNA.

  3. Hybridization of mRNA with DNA would occur but with many single-stranded loops of DNA.

  4. Hybridization of mRNA with DNA would occur but with many single-stranded loops of mRNA.

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TLS Online TPP Program

#Question id: 18969

#Unit 8. Inheritance Biology

Consider the ABO “blood type” gene. This single gene has three alleles called A, B, and O. There are four resultant “blood types” (phenotypic classes), as follows:C
                               
Assume Hardy-Weinberg equilibrium. In Norway, the frequencies of the A and B alleles are 0.26 and 0.07, respectively. What is the frequencies of these six genotypes (AA, AO, BB, BO, AB, and OO);

TLS Online TPP Program

#Question id: 18970

#Unit 8. Inheritance Biology

Consider the ABO “blood type” gene. This single gene has three alleles called A, B, and O. There are four resultant “blood types” (phenotypic classes), as follows:
                                     
Assume Hardy-Weinberg equilibrium,  the frequencies of the A and B alleles are 0.26 and 0.07, respectively. What is the frequencies of the four blood types such as A, B, AB  and O in Norway;

TLS Online TPP Program

#Question id: 18971

#Unit 9. Diversity of Life Forms

The following are all true about the life cycle of mosses except

TLS Online TPP Program

#Question id: 18972

#Unit 9. Diversity of Life Forms

Beginning with the germination of a moss spore, what is the sequence of structures that develop after germination? 
1. Embryo                  2. Gametes 
3. Sporophyte 4. Protonema 
5. Gametophore 

TLS Online TPP Program

#Question id: 18973

#Unit 9. Diversity of Life Forms

Bryophytes may feature all of the following at some time during their existence except 

TLS Online TPP Program

#Question id: 18974

#Unit 9. Diversity of Life Forms

Which feature of cycads distinguishes them from most other gymnosperms? 
1. They have exposed ovules
2. They have flagellated sperm
3. They are pollinated by animals