Reproduction
Types
Types
What is a key difference between asexual and sexual reproduction?
A) Asexual reproduction requires two parents, while sexual reproduction requires only one.
B) Asexual reproduction results in genetically identical offspring, while sexual reproduction results in genetically diverse offspring.
C) Asexual reproduction takes more time than sexual reproduction.
D) Only eukaryotic cells can reproduce asexually.
B) Asexual reproduction results in genetically identical offspring, while sexual reproduction results in genetically diverse offspring.
Why is genetic variation important for an organism’s survival?
A) It reduces the chances of finding a mate.
B) It increases the risk of genetic diseases.
C) It helps an organism survive environmental changes.
D) It slows down reproduction.
C) It helps an organism survive environmental changes.
Which behavior in animals increases the chances of successful reproduction?
A) Using camouflage to hide from mates
B) Building nests to protect young
C) Staying solitary and isolated
D) Ignoring environmental changes
B) Building nests to protect young
How many chromosomes do humans receive from each parent during sexual reproduction?
A) 10
B) 20
C) 23
D) 46
C) 23
What is an example of a neutral mutation?
A) Increased susceptibility to diseases
B) A mutation that does not affect an organism's traits or survival
C) Immunity to diseases like Malaria
D) Huntington’s Disease
B) A mutation that does not affect an organism's traits or survival
Which of the following is an example of asexual reproduction?
A) Budding in hydras
B) Nest building in birds
C) Vocalization to attract mates
D) Cross-pollination in plants
A) Budding in hydras
What is a mutation?
A) A virus that attacks DNA
B) A change to our DNA code that results in a different or malfunctioning protein
C) A type of protein that builds muscle
D) A special diet to improve health
B) A change to our DNA code that results in a different or malfunctioning protein
How do plants increase their chances of successful reproduction?
A) Using bright flowers to attract pollinators
B) Releasing toxic chemicals into the soil
C) Growing as large as possible
D) Hibernating during winter
A) Using bright flowers to attract pollinators
What is the role of proteins in an organism?
A) To provide energy
B) To create the structure needed for cells to function
C) To store genetic information
D) To carry oxygen
B) To create the structure needed for cells to function
What can a mutation in DNA result in?
A) Always a harmful effect
B) Only a neutral effect
C) Positive, harmful, or neutral effects
D) Only a positive effect
C) Positive, harmful, or neutral effects
What is the primary benefit of asexual reproduction?
A) Producing genetically diverse offspring
B) Producing a large number of offspring in a short time
C) Creating offspring that are different from the parent
D) Requiring two parents for reproduction
B) Producing a large number of offspring in a short time
Which of the following is NOT a type of mutation?
A) Expanding DNA to double its size
B) Inserting DNA into places it didn’t belong
C) Deleting DNA
D) Substituting DNA with different coding
A) Expanding DNA to double its size
Which structures in plants help them rely on animal behaviors for reproduction?
A) Thick leaves
B) Bright flowers
C) Deep roots
D) Long stems
B) Bright flowers
What is the function of chromosomes in reproduction?
A) They contain genetic instructions (DNA) to create a unique offspring
B) They are used to break down nutrients
C) They provide energy for cell functions
D) They store food for the organism
A) They contain genetic instructions (DNA) to create a unique offspring
Which of the following mutations could help an organism survive in a changing environment?
A) Increased bone density in a predator-rich environment
B) Susceptibility to heart disease
C) Cystic Fibrosis
D) Genetic mutations that reduce immune function
A) Increased bone density in a predator-rich environment
Which of the following is a characteristic of sexual reproduction?
A) Involves only one parent
B) Offspring are genetically identical to the parent
C) Requires two parents and produces genetically diverse offspring
D) Only occurs in prokaryotic cells
C) Requires two parents and produces genetically diverse offspring
How can mutations affect an organism?
A) They are always harmful.
B) They can be positive, harmful, or neutral.
C) They are always beneficial.
D) They only affect appearance.
B) They can be positive, harmful, or neutral.
Why do plants have specialized structures like bright flowers and strong odors?
A) To attract predators
B) To increase their chances of successful reproduction by attracting pollinators
C) To grow larger in size
D) To produce more seeds than needed
B) To increase their chances of successful reproduction by attracting pollinators
What is one of the main differences between offspring produced by asexual and sexual reproduction?
A) Offspring from asexual reproduction have more chromosomes
B) Offspring from sexual reproduction are genetically diverse
C) Offspring from asexual reproduction are always stronger
D) Offspring from sexual reproduction are identical to the parents
B) Offspring from sexual reproduction are genetically diverse
What does a chromosomal mutation involving deletion typically cause?
A) Insertion of new genes
B) Removal of important genetic material, potentially causing diseases
C) Creation of extra copies of DNA
D) No change to the organism
B) Removal of important genetic material, potentially causing diseases
Which type of cell can reproduce asexually?
A) Only prokaryotic cells
B) Only eukaryotic cells
C) Both prokaryotic and some eukaryotic cells like plants and fungi
D) Only cells in animals
C) Both prokaryotic and some eukaryotic cells like plants and fungi
How do chromosomes contribute to genetic variation during sexual reproduction?
A) By remaining identical to the parent’s chromosomes
B) By crossing over and swapping parts of their DNA
C) By being completely identical between parents
D) By only duplicating once
B) By crossing over and swapping parts of their DNA
Which of the following statements about animal behaviors and reproduction is true?
A) Bright plumage in birds deters mates
B) Herding helps protect young from predators
C) Birds use vocalizations to repel mates
D) Building nests is only for warmth
B) Herding helps protect young from predators
Why might a mutation be considered beneficial?
A) It always causes health problems.
B) It allows organisms to change quickly in a stable environment.
C) It helps an organism survive and reproduce more successfully.
D) It makes organisms smaller and more efficient.
C) It helps an organism survive and reproduce more successfully.
What is one example of a positive effect caused by a chromosomal mutation?
A) Huntington’s Disease
B) Immunity to diseases like Malaria
C) Cystic Fibrosis
D) Heart disease
B) Immunity to diseases like Malaria