TLS Online TPP Program

#Question id: 3592


In garden peas, tall (T) is dominant to short (t), Purple Flowers are (P) dominant to white flowers (p), Axial flowers (A) are dominant to terminal flowers (a), and yellow seeds (G) are dominant to green seeds (g). An individual from a true breeding line of tall, purple flowered, axial-flowered, yellow seeded pea plants is mated to an individual from a true breeding line of short, white flowered, terminal-flowered, green-seeded plants. The F1 are allowed to self-fertilize and produce an F2. What proportion of the F2 is expected to exhibit purple flowers and yellow seeds?

#Section 3: Genetics, Cellular and Molecular Biology
  1. 1/4             

  2. 3/4         

  3. 81/244   

  4. 9/16

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TLS Online TPP Program

#Question id: 4905

#Section 3: Genetics, Cellular and Molecular Biology

Which of the correct feature of genetic material effect?

TLS Online TPP Program

#Question id: 4906

#Section 3: Genetics, Cellular and Molecular Biology

Shell coiling is a maternal effect phenotype controlled by S gene where S is dominant dextral phenotype over s sinistral phenotype. Dextral coiling Ss male snail was cross with sinistral coiling ss female snail, The phenotype of progeny is 

TLS Online TPP Program

#Question id: 4907

#Section 3: Genetics, Cellular and Molecular Biology

Two corn plants are studied. One is resistant (R) and the other is susceptible (S) to a certain pathogenic fungus. The following crosses are made, with the results shown

R male X S female = all S progeny

R female X S male = all R progeny

Which of the following are correct about inheritance?

TLS Online TPP Program

#Question id: 4908

#Section 3: Genetics, Cellular and Molecular Biology

Shell coiling of the snail is maternal effect phenotype control by S gene, where S Dextral is dominant over s sinistral. If snail sinistral coiled shell, which of the following statement is true

TLS Online TPP Program

#Question id: 4909

#Section 3: Genetics, Cellular and Molecular Biology

A pattern of transmission where all offspring have the same phenotype as their mother is consistent with which type of non-Mendelian inheritance?

TLS Online TPP Program

#Question id: 4910

#Section 3: Genetics, Cellular and Molecular Biology

For a trait known to be caused by a mitochondrial gene variant, there may be an occasional female that can transmit different phenotypes to her progeny on an apparently random basis. What situation might you suspect?