Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
30 Cards in this Set
- Front
- Back
|
True Breeding refer to: |
true breeding refer to a genetic strain of an organism in which all individuals are homozygous at the loci under consideration (parents are similar in appearance) |
|
|
The physical location of a particular genes on a chromosome is call a |
locus |
|
|
What are alternative genes that voern the same feature, such as eye color |
alleles |
|
|
What are the possible genotypes resulting from a cross between an individual homozygous for black hair (BB) and heterozygous (Bb) individaul? |
BB, Bb |
|
|
What are the possible genotypes resulting from a cross between two individuals that are heterozygous (Bb)? |
BB, Bb,bb |
|
|
What are the possible genotypes resulting from a cross between an individual homozygous for black hair (BB) and an individual homozyghous for blonde hair (bb)? |
Bb |
|
|
Brown eyes are dominant to blue eyes. If two brown eyed individual have a child with blue eyes, that means: |
one of the parents has an alele with blue eyes which they inherited from one of there parents |
|
|
Genes that tend to be inherited together are said to be: |
Linked genes |
|
|
A diploid individual has a maximum of _________different alleles for a particular locus |
2 |
|
|
Breeding a yellow dog with a brown dog produced mixed color puppies (with both yellow and brown hairs on each individual dog). This is an example of; |
Epistasis |
|
|
What is the phenotype of the offspring produced by a homozygous tall individual (dominant) and a homozygous short individual (recessive)? |
Tt= tall |
|
|
The term "dominant" means that: |
a relationship between alleles of one gene, in which the efect on phenotype of one allele masks the contribution of a second allele at the same locus. The first allele is dominant and the second allele is recessive. |
|
|
Define homozygous |
have a pair of identical alleles for a particular locus |
|
|
Define heterozygous |
having a pari of unlike alleles for a particular locus |
|
|
The genotypic ration of offspring from two heterozygous parents are: |
3:1 |
|
|
In a cross of two parents taht have green eyes, 7 children have green eyes while 2 have blue eyes. From this we can assume that: |
At least one parent has a recessive trait of and one is heterozygous |
|
|
Smooth skin in rats is dominant to folded skin. If you crossed a heterozygous smooth skin rat with a folded skin rat what woudl the offspring look like: |
Smooth skin |
|
|
Chromosomes other than sex chromosomes are called: |
autosomes |
|
|
In a test cross the individual of the unknown genotype is crossed with a |
recessive individual |
|
|
In a normal situation, is it possible to have a heterozygous recessive organism that displays the recessive gene? |
No |
|
|
In genetics is the lower case letters used to distinguish the recessive genes from the dominant genes? |
Recessive |
|
|
Why did Mendel use peas? |
1. easy to grow 2. many varieties available 3. controlled pollinations 4. self - pollinate and males can be removed |
|
|
A Punnett square is used to show: |
probabliiites of ocurrence of all possbile offspring of a genetic cross |
|
|
What referes to the genotyic condition that must be present for a recessive trait to be visible |
Homozygous recessive |
|
|
What refers to the period of time from see to seed production |
fertiliztion |
|
|
What refers to the period of tiem from birth to reproduction |
Norm of reaction |
|
|
What refers to the chromosomes that dermine gender |
sex chromosomes |
|
|
Could a cross between a homozygous tall pea plant and a homozygous dwarf pea plant, produce a swarf pea plants in F1? |
No dwarf pea plant |
|
|
Could any dwarf pea plants be produced in F2 |
Yes |
|
|
Test |
test |
