Evolution
If a species does not have what it takes to survive and reproduce what can happen?
Extinction
DNA is a triple helix
False. It's a double helix
Bb. Is this genotype dominant or recessive?
Dominant
T=tall t= short Cross TT x tt
What is the probability the offspring will be tall?
100%
Type of reproduction where only 1 parent is needed?
Asexual Reproduction
What do we call differences in traits?
Variations
DNA carries an organism's genetic code.
True
TT. Homozygous/Purebred or Heterozygous/Hybrid?
Homozygous/Purebred
B=brown eyes b=blue eyes Cross Bbxbb
What is the probability the offspring will have blue eyes?
50%
Type of Reproduction where 2 parents are needed?
Sexual Reproduction
What do we call the process where some organisms have what it takes to survive and reproduce and others do not.
Natural Selection
Adenine goes with which nitrogen base?
Thymine
BB. Is this a genotype or a phenotype?
A genotype
L=long tail l=short tail
Cross a heterozygous dog with a heterozygous dog.
What is the probability their offspring will have long tails?
75%
Which type of reproduction results in offspring that are genetically identical (no variation) to the parent?
Asexual Reproduction
Which of these is not used as evidence for evolution:
1. Fossils
2. DNA
3. Body Size
4. Comparative Embryology
Body Size
What is the correct complementary strand to complete the gene?
ATCGGA
______
TAGCCT
Heterozygous
To show the possible outcomes of the offspring of 2 parents
Which type of reproduction results in offspring with a lot of variations?
Sexual Reproduction
Based on these images, what can be concluded?
They share a common ancestor
Name the 3 things DNA is made up of.
1. Deoxyribose sugar
2. Phosphates
3. Nitrogen Bases
B=brown eyes
b=green eyes
What is the phenotype of BB?
Brown Eyes
R=red flower r=white flower
Cross a heterozygous flower with a white flower.
How many offspring will be white flowes?
50%
Does this picture show Sexual Reproduction?
No.