Genes, DNA, Mitosis, Meiosis, Chromosomes etc.

What is the greatest benefit of sexual reproduction?

• capable of reproducing by meiosis

• capable of producing offspring genetically identical to parent

• ability to reproduce without a mate

• ability to produce genetically different offspring

A cell becomes injured and can no longer carry on mitosis. Which statement describes the most immediate effect on the cell?

• It would be unable to divide into new cells preventing growth.

• It would be unable to break down sugars for energy.

• It would accumulate harmful toxins and wastes.

• It would be more susceptible to disease.

Tags

NGSS.HS-LS1-4

A's has red hair. Her mother has red hair , while her father has brown hair . Which statement best explains the inheritance of A's hair?

• Annette inherited 75% of her hair color genes from her mother and 25% from her father.

• Annette inherited 50% of her hair color genes from her father and 50% from her mother.

• Annette inherited 100% of her hair color genes from her mother.

• Annette inherited 100% of her hair color genes from her father.

Tags

NGSS.HS-LS3-1

When an egg and sperm form an embryo, the offspring that is formed will have genetic traits that are _______? (This will be a drop down box)

• inherited from one parent

• created by the environment

• passed on from two parents

• learned from siblings

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Wild blackberries reproduce asexually by sprouting new roots when stems touch the ground. They also produce sexually through their flowers. What is the advantage of the blackberry plant being able to reproduce sexually and asexually?

• It allows blackberry plants to adapt to new conditions.

• It produces blackberries that have more flavor.

• • 
    

    It produces flowers that attract insects.

• It allows the plants to grow taller.

Tags

NGSS.MS-LS3-2

NGSS.MS-LS4-4

The lightly shaded areas of the chromosome represent sections of DNA called genes. Select the correct answers.

Genes are sections of ______that code for specific ________. (Drop down boxes)

• proteins and proteins

• DNA and DNA Sequences

• DNA and Cells

• DNA and Proteins

Tags

NGSS.HS-LS1-1

A scientist studied human skin cells that produce 2 genetically identical daughter cells from a single parent cell. This scientist mapped the cells in the image. Which of the following did he map?

• fertilization

• meiosis

• Mitosis

• crossover

Tags

NGSS.HS-LS1-4

A main advantage to organisms that reproduce sexually is?

• longer life spans.

• greater genetic diversity.

• having large numbers of offspring.

• being able to conserve energy.

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NGSS.HS-LS4-2

NGSS.HS-LS4-4

Select all the phases that apply to asexual reproduction in organisms.

• 
  

  requires two parents

  
  

• little variation in offspring

• only one type of cell involved

• duplicates its genetic material

• occurs over a long amount of time

Tags

NGSS.MS-LS3-2

At the end of the miotic cell cycle , a cell divides into two cells. What must happen before the cell divides?

• The number of organelles doubles.

• Chromosomes must be copied.

• Four nuclei must be formed.

• • 
    

    The membrane thickens.

Tags

NGSS.HS-LS1-4