TLS Online TPP Program

#Question id: 2117


Which of the following statements correctly describes osmosis?

#Section 3: Genetics, Cellular and Molecular Biology
  1. Osmosis only takes place in red blood cells.

  2. Osmosis is an energy-demanding or "active" process.

  3. In osmosis, water moves across a membrane from areas of lower solute concentration to areas of higher solute concentration.

  4. In osmosis, solutes move across a membrane from areas of lower water concentration to areas of higher water concentration.

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TLS Online TPP Program

#Question id: 3557

#Section 3: Genetics, Cellular and Molecular Biology

What was the most significant conclusion that Gregor Mendel drew from his experiments with pea plants?

TLS Online TPP Program

#Question id: 3558

#Section 3: Genetics, Cellular and Molecular Biology

Cystic fibrosis (CF) is a Mendelian disorder in the human population that is inherited as a recessive. Normal parents have two children with CF. The probability of their next child being normal son for this characteristic.

TLS Online TPP Program

#Question id: 3559

#Section 3: Genetics, Cellular and Molecular Biology

Homozygous yellow was crossed with green seed plant. All F1 offspring having yellow seed plant were allowed to self fertilization to produced F2 plant. Further F2 plant self fertilized. What is phenotype ratio in F3 generation?

TLS Online TPP Program

#Question id: 3560

#Section 3: Genetics, Cellular and Molecular Biology

During which phase of meiosis does the segregation described by Mendel primarily occur?

TLS Online TPP Program

#Question id: 3561

#Section 3: Genetics, Cellular and Molecular Biology

During which phase of meiosis does independent assortment occur?

TLS Online TPP Program

#Question id: 3562

#Section 3: Genetics, Cellular and Molecular Biology

In cats, blood-type A results from an allele (IA) that is dominant over an allele (iB) that produces blood-type B. There is no O blood type. Two heterozygous was intercross. What is the probability of first offspring blood-type B?