If symbols are shaded in a pedigree then this indicates......
that they are affected by a condition
What percent of beans were heterozygous?
50 percent
what type of daughter cells does meiosis produce?
haploid
How can dairy cows be genetically modified to be more useful?
Genetic changes can be designed to make them produce more milk.
amino acids are decoded in 3's which is known are known as _________
codons
This law states that one copy of a gene is passed randomly from each parent to their offspring
Law of Segregation
Red flowers crossed with white flowers yield pink flowers. Pink is the heterozygous condition resulting from incomplete dominance. If you cross a pink flower with a homozygous red flower, what percent of the offspring will be white?
zero
In the controversial process of cloning, organisms are made that are genetically identical to the parents. So this would be considered ________ reproduction.
asexual
Farmers have switched from growing many varieties of crops to about 20 varieties. Why is this bad?
they are more susceptible to pests/disease
What is the mRNA code for AAT
UUA
There are three things at work during meiosis that promote genetic variation. Crossing over, Random segregation and ....
Independent assortment
(Using Mendels' laws of dominant and recessive traits)show the ratio of offspring if you were to cross 2 heterozygous brown goats. Show the ratio of brown to white.
3:1
3 brown 1 white
During protein synthesis, transcription occurs making a message which leaves the nucleus and goes...
into the cytoplasm/ribosomes.
One negative effect of GMO's on humans is
allergies
Before mitosis begins, a cell makes a copy of the DNA in the nucleus. This is known as _________
replication
DNA fingerprinting would most likely be used to determine....
genetic relationships
A population of rabbits follows a typical pattern of inheritance for fur color. B(brown) and (b) white.
In a population of 200 rabbits being born, how many would be white?
50
During protein synthesis, translation occurs and the mRna is read and decoded to put together ____ _______
amino acids
2 bad things about genetically modified crops are...
pesticide resistance
allergies in humans
we do not know the long term effects of GMO's
Why is DNA replication known as semi-conservative
it replicates one strand- like a parent and a daughter strand
Using this pedigree, what must the genotypes for generation 2 people 3 and 4?
heterozygous
2 heterozygous purple flowering pea plants are crossed. If purple is dominant over white, what are the expected phenotypic ratios?
75% purple, 25% white
DNA contains all of the instructions an organism needs to live. DNA sequences must be changed into messages that can be used to make _________ which does most of the work in our bodies
Proteins
What does GMO stand for
Genetically modified organism
Which is false?
a) mutations can be positive
b) mutations must be present in parents and passed to offspring
c) mutations can be silent
b