Which type of reproduction involves only one parent?
a) Sexual
b) Asexual
c) Fertilization
d) Budding
b) Asexual
What is the male part of the flower?
a) Pistil
b) Petal
c) Stamen
d) Ovary
c) Stamen
What is a recessive allele?
a) Always shows
b) Shows only if paired with another recessive
c) Is stronger than a dominant allele
d) Is a mutation
b) Shows only if paired with another recessive
Who is considered the father of modern genetics?
a) Charles Darwin
b) Gregor Mendel
c) Louis Pasteur
d) Isaac Newton
b) Gregor Mendel
What tool is used to predict the outcome of genetic crosses?
a) Periodic table
b) Food web
c) Punnett square
d) Data table
c) Punnett square
What is the main difference between sexual and asexual reproduction?
a) Asexual needs two parents
b) Sexual reproduction creates identical offspring
c) Asexual produces clones; sexual produces variety
d) Only plants reproduce sexually
c) Asexual produces clones; sexual produces variety
What part of the flower contains ovules (eggs)?
a) Anther
b) Ovary
c) Stem
d) Sepal
b) Ovary
15. What is a phenotype?
a) DNA sequence
b) Physical trait you can observe
c) Recessive trait only
d) All inherited traits
b) Physical trait you can observe
What type of organism did Mendel use in his experiments?
a) Pea plants
b) Corn
c) Mice
d) Roses
a) Pea plants
Which genotype is heterozygous?
a) TT
b) tt
c) Tt
d) TTT
c) Tt
In sexual reproduction, how much genetic material comes from each parent?
a) 100% from one parent
b) 75% from mother
c) 50% from each parent
d) 25% from each
c) 50% from each parent
What is the main function of petals in flowering plants?
a) Hold pollen
b) Attract pollinators
c) Absorb sunlight
d) Carry seeds
b) Attract pollinators
If a dog has the genotype Bb and black fur (B) is dominant over brown (b), what is the dog’s phenotype?
a) Brown
b) Black
c) BB
d) Light brown
b) Black
If both parents are Tt, what percent chance does a child have of being tt?
a) 0%
b) 25%
c) 50%
d) 75%
b) 25%
Which of the following is a genotype?
a) Blue eyes
b) BB
c) Tall plant
d) Curly hair
b) BB
Which of the following is an example of asexual reproduction?
a) A dog giving birth
b) A fish laying eggs
c) A starfish regenerating an arm
d) A bird building a nest
c) A starfish regenerating an arm
What process moves pollen from one flower to another?
a) Fertilization
b) Germination
c) Pollination
d) Reproduction
c) Pollination
Which genotype shows a homozygous recessive condition?
a) TT
b) Tt
c) tt
d) tT
c) tt
Two parents have genotypes Bb and bb. What percent of their offspring will have homozygous dominant trait?
a) 0%
b) 25%
c) 50%
d) 100%
a) 0%
Which animal reproduces through external fertilization?
a) Cat
b) Frog
c) Dog
d) Cow
b) Frog
Which is an advantage of sexual reproduction over asexual reproduction?
a) Faster population growth
b) Produces identical offspring
c) More genetic variation
d) Less energy required
c) More genetic variation
What type of reproduction involves pollination in flowering plants?
a) Asexual
b) Binary fission
c) Sexual
d) Cloning
c) Sexual
In pea plants, purple flowers (P) are dominant to white (p). What is the phenotype of a plant with genotype pp?
a) Purple
b) White
c) Mixed
d) Pink
b) White
What is the phenotype of an organism with the genotype Bb, if B = black fur b = white fur?
a) White fur
b) Gray fur
c) Black fur
d) Spotted fur
c) Black fur
In mice, black fur (B) is dominant over white fur (b). What is the probability that two Bb parents will have a white offspring?
a) 0%
b) 25%
c) 50%
d) 75%
b) 25%