Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
24 Cards in this Set
- Front
- Back
|
What is the genetic code for life called?
|
DNA – deoxyribose nucleic acid
|
|
|
Guanine pairs with what nitrogen base?
|
Cytosine
|
|
|
Factors that control traits are called __________.
|
genes
|
|
|
Which nitrogen base in RNA is NOT part of DNA?
|
Uracil
|
|
|
The order of the bases along a gene determines the order in which ___?___are put together to form a protein
|
Amino acids
|
|
|
Mitosis is the process of replicating
what type of cells? |
Body cells
|
|
|
Replication occurs in what part of
the cell? |
nucleus
|
|
|
How many cell divisions are in meiosis?
|
2
|
|
|
How many chromosomes are in each
new daughter cell at the end of mitosis? |
46
|
|
|
How many chromosomes are there at beginning of meiosis 1?
|
92
|
|
|
What does “synthesis” mean?
|
To make new products
|
|
|
What type of RNA picks up the message
from DNA in the nucleus? |
messenger
|
|
|
A codon consists of how many
nitrogen bases? |
3
|
|
|
What do transfer RNA molecules do
during protein synthesis? |
Carry amino acids to growing
protein chain. |
|
|
How are mutations that occur during protein
synthesis dangerous to the organism? |
They change the sequence of nitrogen
bases which can then code for faulty proteins |
|
|
Why did Mendel choose pea plants
to perform his experiments on? |
They produce many offspring and their
lifecycles are very quick. |
|
|
An organism’s physical
appearance is called… |
phenotype
|
|
|
What do you call an organism that
has 2 different alleles for a trait? |
Hybrid or Heterozygous
|
|
|
When Mendel crossed his F1 generation plants (tall) with each other, what ratio did he get in the F2 generation?
|
3:1 (tall:short)
|
|
|
What does codominance mean?
|
Both dominant and recessive alleles
are expressed. (they don’t blend) |
|
|
One parent of a child has type B bloodand the other has type O. What are the possible blood types for their child?
|
Type B or O
|
|
|
Why are sex-linked traits more common
in males than females? |
There are no traits carried on
the y-chromosome. |
|
|
What organ in the body does the
recessive disorder cystic fibrosis affect? |
Lungs
|
|
|
What is hemophilia and what causes
this genetic disorder? |
An individual must inherit a recessive
Allele from both parents to express hemophilia which is a blood clotting disorder. |
