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question 8 which direction and traits would a scientist who studies the…

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question 8
which direction and traits would a scientist who studies the genetic engineering of crops, and is working to create gmos - most likely try to do to and find for the studied crop?
image of a tomato with dna strands, test tubes, and plants
○ a how to create a crop with a higher yield and greater nutritional value?
○ b how to add traits to the crops making them resistant to fertilizer?
○ c how can artificial selection create better crops, faster?
○ d how can the genetic variation of crops be increased?

question 9
which statement best describes how mitosis maintains genetic continuity?
○ a it ensures variation through crossing over.
○ b it reduces the chromosome number by half to prevent mutations.
○ c it introduces new alleles through independent assortment.
○ d it creates genetically identical cells by accurately replicating dna.

Explanation:

Question 8
Brief Explanations
  • Option a: Genetic engineering of crops (GMOs) aims to improve traits like higher yield and better nutrition, which is a common goal.
  • Option b: Resistance to fertilizer is not a typical goal of GMO crop engineering (fertilizer is used to help growth, not something to resist).
  • Option c: Artificial selection is different from genetic engineering (GMOs involve direct gene manipulation, not artificial selection).
  • Option d: Increasing genetic variation isn't the main goal of creating GMOs for crops; the goal is to introduce beneficial traits, not just variation.

So the correct option is a.

Brief Explanations
  • Option a: Crossing over occurs in meiosis, not mitosis.
  • Option b: Mitosis does not reduce chromosome number (meiosis does that), and it's not about preventing mutations.
  • Option c: Independent assortment and new alleles via that are part of meiosis, not mitosis.
  • Option d: Mitosis replicates DNA accurately and produces genetically identical daughter cells, which maintains genetic continuity (same genetic material is passed to new cells).

So the correct option is d.

Answer:

a. How to create a crop with a higher yield and greater nutritional value?

Question 9