8 Which of the fellowing statement is truc A rait fly generation could he produc

ID: 302664 • Letter: 8

Question

8 Which of the fellowing statement is truc A rait fly generation could he produced in two years BThoas Hunt Morgan Orst nersd te solid evidence of gones associsted with pecifie chromosome in the early 1900s C. Morgan used red eye as the mulant allele D. Morgan's theory supported the law of 9. Which is the lockion of Mendel's heritable factors? A. Chromosome B. Misochondria C. Eadoplasmic reticulum D. Cyloplasm 10. Traits altermative to the wild type is known as A. Dominant phenotype B. Recessive phenotype C. Mutant phenotype D. Wild type 11. Which two organisms are used for demonstrating classical Mendelian's law? A. Drosophila and maize B. Drosophila and peas C. Maize and peas D. Drosophila and polytene chromosomes 12. Which of the following is true for Drosophila? A. They are put to sleep by using chloroform B. They are hatched at 25 degree Fahrenheit C. They pass through a complete metamorphosis D. They can grow without nutrient 13. Ater putting etherizer, how long it takes to ccase movement of the Drosophila? A. 30 seconds B. 3-5 minutes C. 30 minutes D. None of the above Which of the following is the best criteria to distinguish male and female Drosophila? A. Male flies exhibit dark colored external 14. B. C. D. genitalia on the tip of abdomen Only male Drosophila are red eyed Females are smaller in size All of the above Which of the following is the example of alleles used in Mendel's experiment? A. Yellow vs. Green or Wrinkled vs. Smooth B. white vs. purple or wrinkled vs. Smooth C. Yellow vs. Green or short vs. long D. White vs. purple or short vs. long 15.

Explanation / Answer

9) Mendelian inheritance

Mendelian inheritance is a set of principles according to the generalizations of Gregor Mendel. The principles are regarding the transmission of genes from the parents to their offsprings. From the explanation it can be found that the Mendel’s heritable factors lies in

(a) Chromosome

Since only chromosomes contains genes that are segregated during cell division and expressed to produce proteins that help the cell to live.

Mitochondria are the power houses of the cells. They are involved in only power generation and not the proteins required for the cell to live.

Endoplasmic reticulum which are the membranous tubules continuous with the nuclear membrane is attached with ribosomes necessary for protein synthesis. Protein synthesis is the second step after gene expression of the protein.

Cytoplasm is the substance that fills the cell.

Ans: (A) Chromosome

10) A dominant phenotype is a trait resulting from the dominant gene

A recessive phenotype is a trait resulting from recessive gene.

Mutant phenotype results from the alteration of the wild type.

Wild type is the original unmodified state.

Hence from the above explanations, the answer is (c)

Ans: (C) Mutant phenotype

11) Two organisms used for demonstrating classical Mendel’s law

Ans: (B) Drosophila and peas

12) (A) There are no available proofs for using chloroform to induce sleep in Drosophila

(B) They are hatched at 25 degree celcius and not farenheit.

(D) It was shown that Drosophila larvae cannot live without added nutrients.

Ans: (C) They pass through complete metamorphosis