Science Chapter 5 Study Guide
Terms in this set (24)
Genes are section of what?
Before a cell divide, it makes a copy of it's genes. What phase does that happen in?
In which type of reproduction does the offspring receive genes from both parents?
A new cell that forms from the union of two gametes is called what?
When all the genes of a chromosome have duplicated but are still attached, the structures that form are called what?
What carries the genetic code from the DNA to the ribosome?
mRNA - messenger RNA
Name the four bases in the DNA molecule and what they pair with
Adenin - Thymine
Cytosine - Guanine
In an RNA molecule, uracil pairs with what?
In DNA molecule, what does adenine pair with
During cytokinesis, what happens?
Cytoplasm and organelles are distributed
What is NOT important about this process?
The amount doesn't matter
Which reproduction results in offspring that are identical to the parent?
In which phase does the nuclear membrane disappear?
In which phase does new nuclear membrane form?
In which phase does the chromosome line up in the center of the spindle?
What is the process of dividing a cell's cytoplasm and organelles called?
What is the process of forming gametes called?
What is the process of putting amino acids together in a specific sequence called?
List the phases of sexual reproduction - mitosis - in order
Interphase, prophase, metaphase, anaphase, telophase, cytokinesis
what are the two scientists who came up with the DNA molecule?
Watson and Crick
Protein synthesis occurs on which organelle?
Name three purposes for mitosis
Replace dead skin, growth, perform meiosis
Compare sexual and asexual reproduction
Asexual - identical to a parent, No need for partner, 1 diploid to 2 diploids. 1 Division
Sexual - Not identical to parents, Need partner, 1 diploid to 4 haploids
A mouse has 40 chromosomes in a normal diploid cell. How many chromosomes would a mouse cell have after mitosis? After meiosis?