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#Question id: 4318


Which of the following statements correctly describes a characteristic of tumor-suppressor gene?

#Section 3: Genetics, Cellular and Molecular Biology
  1. They are frequently overexpressed in cancerous cells.

  2. They are cancer-causing genes introduced into cells by viruses.

  3. They encode proteins that help prevent uncontrolled cell growth.

  4. They often encode proteins that stimulate the cell cycle.

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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?

TLS Online TPP Program

#Question id: 3563

#Section 3: Genetics, Cellular and Molecular Biology

Independent assortment is based on the random separation of homologous pairs of chromosomes in anaphase I of meiosis; it takes place when genes encoding two characters are located

TLS Online TPP Program

#Question id: 3564

#Section 2: General Biology

Population locus with four alleles. How many genotypes are present in the population?

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#Question id: 3565

#Section 3: Genetics, Cellular and Molecular Biology

Mendel crossed yellow-seeded and green-seeded pea plants and then allowed the offspring to self-pollinate to produce an F2 generation. The results were as follows: 6,022 yellow and 2,001 green. Which of the following statements correctly describes the relationship of the allele for green seeds to the allele for yellow seeds?

TLS Online TPP Program

#Question id: 3566

#Section 3: Genetics, Cellular and Molecular Biology

Two organisms, with genotypes BbDD and BBDd, are mated. Assuming independent assortment of the B/b and D/d genes, determine the genotypic ratios in offspring that would occur.