Genetics & PS
The characteristics of an organism.
What are traits?
This gene always shows is self over a recessive gene
What is a dominant gene?
All human cells contain _________ chromosomes (or 23pairs)
What is 46?
What color rabbits do you get when you cross a pure bred black rabbit with a pure bred white rabbit?
What is all black rabbits
a capital letter represents what type of trait?
What is a dominant trait?
The passing of traits from parent to offspring is called.
What is heredity?
This describes two of the same copies of a gene
What is homozygous?
A Pink fuzzy bears is crossed with a green smooth bears. The results are all Pink fuzzy bears. What are the dominant traits
What are pink and fuzzy?
What genotypes do you get when you cross a homozygous black rabbit with a heterozygous black rabbit?
What are two homozygous FF black rabbit to two heterozygous Ff black rabbits
Heterozygous parents are crossed. What percent of offspring will be homozygous dominant?
What is 25%?
A small section of DNA for each trait can be found on the ________________
What is the Gene?
This describes different alleles for the same trait.
what is heterozygous?
The process by which DNA is duplicated
What is replication?
Two heterozygous green pea pod plants are crossed. The result is three one GG pea pod, two Gg pea pods, and one gg pea pod. Three of these are green and one is yellow. What is the dominant trait?
What is a green pea pod
What percent of the offspring of a cross of heterozygous parents will be homozygous?
What is 50%?
Chromosomes are made up of _______.
What is DNA?
A model that shows possible gene combinations.
What is a Punnett square?
During replication, DNA makes an ________ copy of itself.
What is identical?
if you crossed a Ff with an Ff what are the genotypes and ratios?
What is 1/4 FF, 2/4 Ff, 1/4 ff
What percent of the offspring of a cross of heterozygous parents will be heterozygous?
What is 50%?
Sequence of nucleotides in DNA.
Gene
Combination of Alleles is known as
Genotype
One of two or more forms of a particular gene
What is an allele?
What percentage of two homozygous parents will be heterozygous?
What is zero percent?
What percent of the offspring of heterozygous parents will be homozygous recessive?
What is 25%
Crossing 2 homozygous dominant parents leads to what percent of offspring being heterozygous
What is 0%
genes of a trait that is hidden when the dominant gene is present
What is a recessive gene?
what genotype do you get when you cross two white rabbits?
All are ff homozygous white rabbits
Crossing 2 homozygous dominant parents leads to what percent of offspring being heterozygous
0%
A dominant brown bunny has a baby with a recessive white bunny. It has two brown bunny offspring. What is the genotype of its parents? Use W and w.
What is Ww and WW?
A type of cell division that results in four identical haploid cells.
What is Meiosis?
The process in which a single cell is divided into 2 daughter cells that identical.
What is Mitosis?
What color rabbits do you get when you cross two heterozygous black rabbits together and in what ratio?
What is three black rabbits to one white rabbit
The reason for cell division in mitosis?
What is to grow, to replace damage cells and tissues and to reproduce DNA?
What genotypes and in what ratio do you get when you cross two heterozygous black rabbits
What is 1 homozygous black FF rabbit : 2 heterozygous Ff black rabbits: and 1 homozyous ff white rabbit