Where are chromosomes found?
B. cell membrane
Every living thing has genetic information stored in the form of
A trait that is always hidden when the dominant allele is present.
B. Recessive allele
When the doctor operates on the patient’s eye, he is using
A. learned behavior.
B. acquired physical trait.
C. inherited physical trait.
The allelle / (trait) that is “weaker”. The offspring will not have the trait represented unless there are two of these.
A. recessive allele
B. dominant allele
C. co-dominant allele
Juan’s dog, Luna, was hit by a car. Fortunately, she lived and is healthy! But she is now missing a leg. Having only three legs is a(n)
A. inherited trait.
B. learned behavior.
D. acquired trait.
Which is heterozygous ?
Which would be an example of a trait shaped by their environment?
A. Eye color
B. Hair color
C. Language they speak
Heredity is the passing of traits from _____________________ to _____________________
A. predators to prey
B. water to rain
C. parents to offspring
D. fungi to protists
A unit of genetic material or factor that determines a trait
Which of the following is heterozygous or one dominant and one recessive allele?
The passing of physical characteristics, or traits, from parent to offspring.
B. Dominant allele
D. Recessive allele
The different forms of a gene.
A. Found in the mitochondria
B. Made of 20 pairs
C. Long strands of DNA that contain many genes
D. Bundles of DNA that contain only one gene each
Different versions or forms of the same gene are called –
B. sex cells
C. nitrogen bases
What is a gene?
A. An entire chromosome that codes for a trait
B. a piece of clothing
C. a piece of a DNA on chromosome that codes for a trait
D. Chemical messengers in your brain that code for a trait
What is NOT an inherited trait of humans?
A. Favorite type of music
C. Hair color
An organism that has two different alleles for a trait.
D. Dominant allele
An organism’s appearance is known as its
What organism did Mendel study?
A. pea plants
If a gene is always expressed or always shown with a capital letter it is
Which sentence is FALSE?
A. All organisms have 23 pairs of DNA.
B. Chromosomes are made of genes.
C. DNA is made out of 4 chemicals: adenine, cytosine, thymine, guanine
D. DNA is the recipe for life.
Which is the stronger gene that always shows itself?
If you cross two heterozygous pea plants that are tall, what is the probability they will have offspring that are tall?
A. one in four
B. two in four
C. four in four
D. three in four
What is cross pollination?
A. When pollen from a flower fertilizes itself or another flower on the same plant
B. When pollen from one flower fertilizes a flower on a different plant
C. A plant whose offspring share the same traits as the parent
D. A plant whose offspring is genetically different from the parent.
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