TLS Online TPP Program

#Question id: 4085


When TAT protein fails to bind to the TAR region of the HIV transcript, which of the following statements is (are) true?

#Unit 3. Fundamental Processes
  1. RNA polymerase II terminates transcription.

  2. Cyclin T does not interact with Cdk 9.

  3. Cdk9 acts on the RNA polymerase II molecule transcribing the HIV genome.

  4. The C-terminal domain of RNA polymerase II is phosphorylated.

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TLS Online TPP Program

#Question id: 17269

#Unit 8. Inheritance Biology

In humans, albinism (unpigmented skin, hair, and eyes) is due to an enzymatic deficiency, and it is an autosomal recessive trait. Suppose that in a small country of one million people (“Generation 1”), there are 500 aa albinos and 9000 Aa heterozygous carriers. In the next generation of 1 million individuals (Generation 2), what are the expected numbers of aa albinos and Aa carriers? (Assume random mating and all other HardyWeinberg conditions.)

TLS Online TPP Program

#Question id: 17807

#Unit 8. Inheritance Biology

In humans, albinism (unpigmented skin, hair, and eyes) is due to an enzymatic deficiency, and it is an autosomal recessive trait. Suppose that in a small country of one million people (“Generation 1”), there are 500 aa albinos and 9000 Aa heterozygous carriers. What is the probability that a child will be albino if: Both parents are non-albino members of Generation 2?

TLS Online TPP Program

#Question id: 17808

#Unit 8. Inheritance Biology

In humans, albinism (unpigmented skin, hair, and eyes) is due to an enzymatic deficiency, and it is an autosomal recessive trait. Suppose that in a small country of one million people (“Generation 1”), there are 500 aa albinos and 9000 Aa heterozygous carriers. What is the probability that a child will be albino if: One parent is a non-albino member of Generation 2, and the other parent is a non-albino member of Generation 1.

TLS Online TPP Program

#Question id: 17809

#Unit 8. Inheritance Biology

In humans, albinism (unpigmented skin, hair, and eyes) is due to an enzymatic deficiency, and it is an autosomal recessive trait. Suppose that in a small country of one million people (“Generation 1”), there are 500 aa albinos and 9000 Aa heterozygous carriers. What is the probability that a child will be albino if: Both parents are members of Generation 2, and one parent is albino and the other is non-albino.

TLS Online TPP Program

#Question id: 4900

#Unit 8. Inheritance Biology

The chlorophyll-deficient types occur in a particular plant species due to a mutation in the DNA of the chloroplast itself, Female cytoplasm chlorophyll-deficient organisms crossed with male normal chlorophyll will produce progeny

TLS Online TPP Program

#Question id: 26787

#Unit 8. Inheritance Biology

In the S phase of meiotic interphase, each chromosome replicates, producing two copies of each allele, one on each chromatid, the homologous chromosomes segregation takes place in__

Which of the following statements is correct about the segregation of chromosomes?

a.If no crossing over has taken place, the two chromatids of each chromosome segregate in anaphase II and are identical

b. If crossing over has taken place, the two chromatids are no longer identical, and the different alleles segregate in anaphase II

c. If no crossing over has taken place, the two chromatids of each chromosome segregate in anaphase I and are identical