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TLS Online TPP Program

#Question id: 4232

Once researchers identified DNA as the molecule responsible for transmitting heritable traits, they asked how information was transferred from the DNA in the nucleus to the site of protein synthesis in the cytoplasm. Which of the following statements correctly describes the mechanism of information transfer in eukaryotes that accomplishes this task?

#Unit 3. Fundamental Processes

  1. DNA from a single gene is replicated and transferred to the cytoplasm, where it serves as a template for protein synthesis.

  2. Messenger RNA is transcribed from a single gene and transfers information from the DNA in the nucleus to the cytoplasm, where protein synthesis takes place.

  3. Histone proteins in the chromosomes transfer information from the nucleus to the ribosome, where protein synthesis takes place.

  4. Transfer RNA takes information from DNA directly to a ribosome, where protein synthesis takes place.

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TLS Online TPP Program

#Question id: 5735

#Unit 8. Inheritance Biology

Aneuploids may arise through nondisjunction, the failure of homologous chromosomes or sister chromatids to separate in meiosis. Following some statement are correct.

A)  Meiosis I non-disjunction leads to produce all gamete become aneuploidy

B) Meiosis II non-disjunction leads to produce half of gametes n+1 other half normal haploid

C) Meiosis I non-disjunction leads to produce half of gametes n+1 other half n-1

D) Either meiosis I or meiosis II non-disjunction leads to produce all aneuploidy gamete
TLS Online TPP Program

#Question id: 5736

#Unit 8. Inheritance Biology

Two zygote in which one A is 44+XYY and another B is 44+XXX karyotype is best described by
TLS Online TPP Program

#Question id: 5737

#Unit 8. Inheritance Biology

When an organism gains one extra copy of a chromosome but not a complete haploid set, the conditions is known as
TLS Online TPP Program

#Question id: 5738

#Unit 8. Inheritance Biology

It was once thought that the ____ karyotype was related to criminal disposition because it led to aggressive behavior due to excessive "maleness".
TLS Online TPP Program

#Question id: 5739

#Unit 8. Inheritance Biology

Polyploid plants found in nature usually have even numbers of chromosomes because organisms having odd numbers
TLS Online TPP Program

#Question id: 5740

#Unit 8. Inheritance Biology

Pollen from one species germinates on the stigma of another related species and sexually fertilizes the ovule. Most of the resulting plants are sterile but some of the resulting offspring undergo chromosome duplication resulting fertile plants. The fertile offspring are known as