TLS Online TPP Program

#Question id: 4946


Although absolute distinctions between the ʺmost evolvedʺ protobiont and the first living cell are unclear, biologists generally agree that one major difference is that the typical protobiont could not

#Unit 11. Evolution and Behavior
  1. possess a selectively permeable membrane boundary.

  2. perform osmosis.

  3. grow in size.

  4. perform controlled, precise reproduction.

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TLS Online TPP Program

#Question id: 15007

#Unit 8. Inheritance Biology

You set up a cross between true breeding wild type male fruit flies and true breeding female flies with a yellow body color. You notice in the F1 generation that half the flies, specifically all the males, have yellow body color while the females are wild type (gray). Which of the following explanations is the most likely?

TLS Online TPP Program

#Question id: 15006

#Unit 8. Inheritance Biology

Which of the following is not a mechanism for sex determination?

TLS Online TPP Program

#Question id: 12706

#Unit 8. Inheritance Biology

When the genotype is determined by the bi-parental contribution, while the phenotypic effect is determined by the maternal nuclear gene. This effect exhibit on the basis of 

TLS Online TPP Program

#Question id: 12704

#Unit 8. Inheritance Biology

Cytoplasmic male sterility (CMS) in plants is caused by mutation in the mitochondrial genome. CMS can be restored by a nuclear gene, restorer of fertility (Rf), which is a dominant character. 

TLS Online TPP Program

#Question id: 12702

#Unit 8. Inheritance Biology

Some given characteristics features of Cytoplasmic inheritance, which of the following statements are not follow the inheritance pattern;
a) Cytoplasmic gene and their trait present in both male and female
b) Reciprocal cross results aren’t change
c) Exhibit extensive phenotypic variation
d) Reciprocal cross results are change
e) Mendel’s principle of segregation and independent assortment are follow

TLS Online TPP Program

#Question id: 4927

#Unit 8. Inheritance Biology

following cross were allowed

I-Recessive phenotype female X Dominat phenotype male = all recessive phenotype

II-Recessive phenotype male X Dominat phenotype female = all dominant phenotype

Which of the following conclusion?