2 alleles for a trait separate when gametes are formed
How many phenotypes can be produced by a pair of codominat allels
3
In bacterium cell divison takes place when
the DNA is copied and a new cell wall forms between the DNA copies and the cell splits into 2 cells
The following shows the correct sequence
G1-- S-- G2-- M-- C
S--G2--M--C--G1
G2--M--C--G1--S
M--C--G1--S--G2
Cell growth: G1
Dna copying: S
Difference between anaphase in mitosis and anaphase I of meisois is that
chromatids do not seperate at the centromere in anaphase I
A ____ is a segment of a DNA molecule that carries the instruction for producing a specific trait
gene
Whaat are monohybrid and dihybrid crosses?
MONO- using a single trait with two alleles
DI- using two traits with two alleles each
Why are most sexlinked disorders in males
Males have chromosomes X and Y, if the sex linked trait is on the X there is nothing to counter act it but in females, they have 2 Xs so one would be the dominat and the desise is the recieve
2 advantages of asexual reproduction over seual reproduction
1. quick
2. only needs one parent
3. affective in stable enviorment
2 reasons why it was fortunate tht mendel used peas