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In tomato plant, red (R) is dominant over yellow (r) for fruit color and purple (P) is dominant over green (p) for stem color. Fruit color and stem color assort independently. The number of progeny plants of different fruit/stem colors obtained from a mating are as follows:
Red fruit, purple stem - 145
Red fruit, green stem - 184
Yellow fruit, purple stem - 66
Yellow fruit, green stem - 47
What are the genotypes of the parent plants in this mating?
Empirical studies have shown that the women students are underrepresented in the disciplines such as science, technology, engineering, and mathematics (STEM). Its possible reasons could be (A) Women students do not feel comfortable with STEM subjects. (B) Women students cannot excel in STEM subjects (C) Women students lack aptitude in STEM subjects (D) Women students face threats due to negative stereotypes. (E) Women students are not encouraged by their parents to join STEM disciplines. Choose the correct answer from the options given below:
With reference to 'stem cells', frequently in the news, which of the following statements is/are correct? 1. Stem cells can be derived from mammals only. 2. Stem cells can be used for screening new drugs. 3. Stem cells can be used for medical therapies. Select the correct answer using the codes given below.
With reference to 'stem cells', frequently in the news, which of the following statement(s) is/are correct?
1. Stem cells can be derived from mammals only.
2. Stem cells can be used for screening new drugs.
3. Stem cells can be used for medical therapies.
Select the correct answer:
Consider the following statements: 1. HSS tools wear very rapidly, whereas in cemented carbide tools, even though hardness is retained, crater wear can occur due to solid-state diffusion. 2. Cutting tools made of Super-HSS, also known as cobalt-based HSS, are made by adding 2% to 15% of cobalt which increases the cutting efficiency at heavier cuts by increasing the hot hardness and wear resistance. 3. Tools failure due to excessive stress can be minimized by providing small or negative rake angles on brittle tool materials, protecting tool tip by providing large side-cutting edge angles, and honing a narrow chamfer along the cutting edge. Which of the above statements are correct?
Flank wear occurs mainly on the 1. Nose part of the cutting tool 2. Front relief face and side relief face of the cutting tool 3. Face of the cutting tool at the shortest distance from the cutting edge Which of the above is/are correct?
Choose a figure which would most closely resemble the unfolded form of figure (Z).
Paper Cutting mcq question image
Choose a figure which would most closely resemble the unfolded form of figure (Z).
Paper Cutting mcq question image
Choose a figure which would most closely resemble the unfolded form of figure (Z).
Paper Cutting mcq question image
Choose a figure which would most closely resemble the unfolded form of figure (Z).
Paper Cutting mcq question image