Genetics & Cell Theory
Unlike DNA, RNA contains
Uracil instead of thymine
What happens during photosynthesis?
Plants convert sunlight, carbon dioxide, and water into glucose and oxygen.
Which organelle converts the chemical energy stored in food into compounds that are more convenient for the cell to use?
Mitochondria
The principles of probability can be used to
Predict the outcomes of genetic crosses
When a chromosome undergoes a deletion mutation, information is
Lost
The two main stages of the cell cycle are
Interphase and mitosis
What is the main product of the Calvin cycle?
Glucose
What is the role of the spindle fibers during mitosis?
To separate the chromosomes
Gregor Mendel’s principles of genetics apply to
All organisms that reproduce sexually
Which of the following is a chromosomal mutation?
Duplication
Organisms that have two identical alleles for a particular trait are said to be
Homozygous
Plants get the energy they need for photosynthesis by absorbing
Light energy from the sun
Which organelle would you expect to find in plant cells but not animal cells?
Chloroplasts
Which of the following represents the phases of mitosis in their proper sequence?
Prophase, metaphase, anaphase, telophase
A mule is the result of a cross between a donkey and a horse. A mule is a
Hybrid (sterile offspring)
Which of the following is NOT a true statement about ATP?
ATP is used only during cell division.
The role of NADP+ in photosynthesis is to
Carry high-energy electrons to the light-independent reactions
Which structures are involved in cell movement?
Microtubules and flagella.
A heterozygous tall pea plant is crossed with a short plant. The probability that the offspring will be tall is
50%
If a pea plant’s alleles for height are tt, what is true of its parents?
Both parents contributed a recessive allele for height
A mutation that involves one nucleotide is called
Point mutation
During which phase of mitosis do the chromosomes line up along the middle of the dividing cell?
Metaphase
The primary function of the cell wall is to
Provide structural support and protection.
Which of the following is a function of the nucleus?
To store genetic information in the form of DNA
A breed of chicken shows codominance for feather color. One allele codes for black feathers, another codes for white feathers. The feathers of heterozygous chickens of this breed will be
Black and white (speckled)