In zebras, long snouts are dominant to short snouts. If a Ss zebra breeds with an SS zebra, what are the chances their offspring will have a short snout?
0% or 0/4 (must show a correct Punnett Square)
Trait
The passing down of genes and traits from one generation to the next
What organelle is the DNA located in inside a cell?
the nucleus
Because seven eight nine!
Having a widow's peak is a dominant trait. If the mother is homozygous recessive and the father is a hybrid, what are the chances their offspring will have a widow's peak?
50% or 1/2 or 2/4 (must show Punnett Square as evidence)
In Snowshoe hares, white fur is dominant to gray fur. What is the phenotype of a gray hare?
gray
The segment of DNA that codes for a specific trait
a gene
DNA stands for...
deoxyribonucleic acid
What always ends everything?
The letter G
In platypus, short tails are a recessive trait. If a heterozygous platypus and a true-breeding short-tailed platypus have offspring, what are the chances the offspring will have a short tail?
25% or 1/4 (must show Punnett Square evidence)
The structure that contains DNA within the nucleus
a chromosome
Being right handed is dominant to being left handed. What could the genotype be for a left-handed person?
hh
What are the three parts of a nucleotide? (the molecule that makes up a DNA strand?)
a 5 carbon sugar (deoxyribose)
a phosphate group
a nitrogen base
When things go wrong, what can you always count on?
your fingers
In monsters, four arms is dominant to one arm. Silly Sylvia has four arms. Her husband, Joking Jack also has four arms. Can they have a baby monster with one arm? Explain why or why not using evidence.
Yes - They could both be heterozygous. If they are, they would have a 25% or 1/4 chance of having a baby monster with one arm. (must show a correct Punnett Square)
hybrid and heterozygous
What are two of the three different ways to say "two of the same alleles" using our vocabulary?
true-breeding, purebred, and/or homozygous
What does it mean when we say DNA is a double helix with anti-parallel strands?
DNA has two strands that are twisted and run in different directions.
What has ten fingers and two thumbs but was never living?
a pair of gloves
Which color represents the recessive trait and how can you tell?
Black represents the recessive trait. The only way a trait represented in black could appear after many generations is if it was hidden behind a different dominant trait.
A type of dominance where an individual with two different alleles shows a mix of the two traits
EX: red + white = pink
incomplete dominance
A type of dominance where an individual with two different alleles shows both of the traits at the same time
EX: red + white = red and white
codominance
Name the four nitrogen bases and explain which ones pair together.
Adenine pairs with Thymine
Cytosine pairs with Guanine
What begins with T, ends with T, and has T in it?
a teapot