Hs Ls 3 3

In Sunflowers, if the diploid number of chromosomes is 48, how many chromosomes will be found in the pollen grain(haploid)? (1 point)

• 96

• 48

• 24

• 12

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NGSS.HS-LS3-2

Examine the pedigree, which of the following statements best fits the data?

• Two parents with widow's peak only have widow's peak children

• Two parents with no widow's peak only have children with no widow's peak.

• If parents do not match the widow's peak trait, the children will all have widow's peak.

• If parents do not match on the trait, the children will have widow's peak.

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

After mitosis, the number of chromosomes in a daughter cell is

• Half the number in the parent cell.

• One-quarter the number in a parent cell.

• Twice the number in the parent cell.

• The same as the number in the parent cell.

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NGSS.HS-LS1-4

A poodle with black fur(BB) is crossed with a poodle with brown fur(bb). What is the probability that the offspring will be black?

• 25%

• 50%

• 75%

• 100%

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NGSS.HS-LS3-1

NGSS.HS-LS4-3

Felicia , Maria, and Louis are siblings. Felicia is the oldest and Louis is the youngest. Maria is in the middle. How much of their genetic information will they have in common?

• They all have exactly the same information because they have the same mother and father.

• Maria and Felicia share the same information, but not Louis.

• They have no genetic information in common because they are not triplets.

• They share about 50% of their genetic information with each of the other siblings.

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NGSS.HS-LS3-1

Explain your reasoning for choosing the answer you did in number 5.

• Each parents gives 100% of their DNA to each child. So siblings share 100% of their DNA.

• Each parents gives half of their DNA to a child, so siblings will share about 50% of their DNA.

• Each parent gives 25% of their DNA to each child, so siblings will share 25% of their DNA.

• Each parent give 10% of their DNA, so siblings will share 10% of their DNA.

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NGSS.HS-LS3-1

Kioshi and Raidon are brothers. Both of their parents have brown eyes. Kioshi also has brown eyes, but Raidon's eye are grey. Which of the following explains why the brothers have different eye color?

• Parents who both have brown eyes always have at least one offspring with grey eyes.

• Offsprings from the same parents always inherit the same traits.

• Sometimes an offspring can show a variation of a trait that neither parent has.

• Eye color is not an inherited trait.

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

Huntington's disease affects the muscles and nervous system. People who have Huntington's disease usually get the disease in their 30s. Which of the following is the most accurate statement?

• Huntington's disease could not be due to genetics because genes determine your inherited traits from birth and they do not change in your 30s.

• Huntington's disease could not be due to genetics because everyone's internal organs are the same.

• Huntington's disease could be due to genetics because a slight change in a gene you are born with produces an abnormal protein that eventually leads to a disease.

• Huntington's disease could be due to genetics because most diseases that affect the nervous system are due to genetics.

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

When you get a prescription for antibiotics, the label states that you have to keep taking it even after you start to feel better. Why is it important to take a full dose of antibiotics? Choose the Best answer.

• You should always finish all of your prescription because you may not be fully recovered yet and you could get sick again if you stop the antibiotics.

• Bacteria vary in how easily they are killed by antibiotics. Some bacteria may die more quickly, and the ones that are tougher will multiply.

• The antibiotic may make you feel better before all the bacteria are killed, and the ones still alive may make you sick again after you stop the antibiotic.

• It can take a long time to get to all the bacteria in your body, so you need to keep the dose high until all the remaining bacteria have been killed.

Your genes are inherited from your

• Parent

• Alleles

• Gametes

• offspring

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NGSS.HS-LS3-1