Threadlike structures found in the nucleus of the cell.
What are chromosomes?
100
Traits that are passed to offspring from parents.
What is inherited?
100
A change or error in a gene or chromosome.
What is a mutation?
100
This scientist experimented with fruit flies to understand chromosomes.
Who is Thomas Morgan Hunt?
100
Fruit flies have this kind of chromosomes.
What are large chromosomes?
200
This type of organism has only one step in reproduction.
What is the amoeba or bacteria?
200
For many-celled organisms, offspring needs this many parents to reproduce.
What are two parents?
200
Name two fruits that are result of a mutation and what is the mutation for each.
What are any seedless fruit, nectarine which has smooth skin?
200
Mendel used this to analyze the results of his experiments.
What is mathematics?
200
This part of the plant contains the sperm cell.
What is the stamen?
300
The time that bacteria can divide.
What is every twenty minutes?
300
Reproductive cells have this many chromosomes compared to a fertilized egg.
What is half the amount of chromosomes?
300
Name a trait that you can get from your parents that you cannot see.
What is a disease?
300
The scientist that took the first picture of DNA.
Who is Rosalind Franklin?
300
Sea urchins are not this to its parents.
What is identical?
400
Sea urchins are not this to the parents.
What is not identical?
400
The reason why a variety of traits are good.
What is to survive changes in the environment?
400
This is the process of taking a small branch and attaching it to a normal plant to make seedless fruits.
What is grafting?
400
The two scientist that built the structure of DNA.
Who are James Watson and Francis Crick?
400
If an animal that carries two dominant genes and another animal carries two recessive genes, their offspring will be this.
What are all hybrids?
500
Name the four steps of cell division.
What is make a copy, line up, separate, and divide forming two new cells?
500
Two hybrids parents can have offspring that can have these genes.
What are only dominant, only recessive, and hybrids?
500
Name four facts about what mutations can do for organisms.
What is produce new traits, produce different traits, can be passed down from parent to offspring, can be harmful, hurtful, no effect?
500
Name three facts that Gregor Mendel concluded about traits.
What are traits are passed from parent to offspring, one trait can hide another trait, one trait does not usually affect the way another trait is inherited?
500
Name three organisms that have changed because of selective breeding and what each are selected for.
What are plumper turkeys for more white meat, sheep with shorter legs, larger ear of corn, fruits that last longer?