Genetics review

Sometimes a fungus reproduces sexually. At other times, it reproduces asexually. What is the difference between these two processes?

• Sexual reproduction does not involve genetic material.
• Sexual reproduction results in only one offspring.
• Sexual reproduction produces genetically identical offspring
• Sexual reproduction involves two parents.

Tags

NGSS.MS-LS3-2

What you see, or physical appearance

• Genotype

• Homozygous

• Heterozygous

• Phenotype

Tags

NGSS.HS-LS3-1

Which of the following alleles is homozygous (purebred ) recessive

• TT
• bb
• Gg
• r

Aa, DD, bB are all examples of

• genotypes
• phenotypes

A grasshopper has 24 chromosomes in its body cells. How many chromosomes are in each sex cell of a grasshopper (after they have undergone meiosis)?

• 24
• 12
• 48
• 6

Which of the following is a common example of selective breeding?

• Cows that produce lots of meat
• Tomato plants that produce fewer tomatoes
• Crops that catch disease

Magda is a tall , 11 year old drummer. She has a scar on her right cheek and she is good at swimming. Which trait did Magda most likely inherit.

• height
• ability to swim
• the scar
• ability to play drums

Tags

NGSS.HS-LS3-1

A scientist crossed a tall pea plant with a short pea plant. Out of the offspring, 39 plants were tall and 13 were short. What percentage describes the short plants?

• 10%
• 13%
• 25%
• 50%

Tags

NGSS.HS-LS3-3

NGSS.HS-LS4-3

A dimpled chin (D) is dominant over a non-dimpled chin (d). If a person is Dd, what is their phenotype?

• Heterozygous
• Homozygous
• Non-dimpled chin
• Dimpled chin

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of these is due entirely to inheritance in humans?

• Height

• Reading skill

• Healthy habits

• Language

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2