Which event would most likely cause a change in a genetic sequence in an organism?

eating certain foods high in saturated fats

a sudden exposure to cooler temperatures

Researchers have found that formaldehyde and asbestos can alter DNA base sequences. Based on this research, the use of these chemicals has been greatly reduced because they

are capable of causing mutations in humans

may act as fertilizers, increased the growth of algae

have been replaced by more toxic chemicals

interfere with the production of antibiotics by white blood cells

Recently, a human esophagus was produced by using a patient's own stem cells. The benefit of using the patient's own cells to produce a esophagus instead of receiving one from a donor is that

there is less of a change that the patient's immune system will attack it

there will be more enzymes produced to help maintain homeostasis

there will be an increase in the quantity of antibodies that the patient produces in response to the new organ

there will be a greater response to any infectious agent that may enter the body

Farmers may someday clone their best milk-producing cow in to a whole herd. What potential disadvantage might be important to consider in having such a large group of clones on one farm?

Lack of variation may limit survival in the herd.

It may be difficult to tell the animals apart.

The cows could be fertilized by only one type of bull.

The cows could be mated only with each other.

G = green, g = yellow The genotype for a yellow plant is...

all of the choices result in yellow

Genotype refers to the ...

the possible combination of alleles in a gene

physical expression of the genes

whether an allele is dominant or recessive

Genetics

Quiz

•

Biology

•

9th Grade

•

Practice Problem

•

Medium

•

NGSS

HS-LS3-2, HS-LS3-1, HS-LS1-1

Standards-aligned

Todd Dancesia

Used 2+ times

FREE Resource

36 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

a gene whose expression can be hidden

recessive gene

dominant gene

2.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

a gene that can hide the effect of a recessive gene

dominant gene

recessive gene

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Homozygous or Heterozygous: ff

homozygous

heterozygous

neither

Tags

NGSS.HS-LS3-2

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which statement best supports why many offspring look similar to their parents?

Offspring inherit traits from only one parent.

Parents choose which traits to pass on to their offspring.

Offspring inherit traits from both parents.

Tags

NGSS.HS-LS3-1

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Homozygous or Heterozygous: Ff

homozygous

heterozygous

neither

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

the child or young of two parents

phenotype

species

purebred

offspring

Tags

NGSS.HS-LS3-1

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The heterozygous genotype for trait of dimples? (D = has dimples, d = does not have dimples)

DD

Dd

dd

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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a gene whose expression can be hidden

a gene that can hide the effect of a recessive gene

Homozygous or Heterozygous: ff

Which statement best supports why many offspring look similar to their parents?

Homozygous or Heterozygous: Ff

the child or young of two parents

The heterozygous genotype for trait of dimples? (D = has dimples, d = does not have dimples)

Genotype or Phenotype: Freckles

Genotype or Phenotype: Black hair

The hidden (or masked) form of an inherited trait

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