Genetic Interactions Part 1 Flashcards
allelic interactions
complete dominance
incomplete dominance
co-dominance
over-dominance
To address the problem, he tabulated the traits, guess the alleles:
Stem Length
long - T
short - t
a set of eight (8) proteins
histones
these are a set of information from the DNA that encodes for specific trait or group of traits.
Genes (genotype)
To address the problem, he tabulated the traits, guess the alleles:
Flower Position
axil - A
terminal - a
only one gene is responsible for the trait expression
monohybrid cross
What is the genetic interaction involved when a cat has one green eye and other blue eye?
co-dominance
If the offspring of a monohybrid test cross results in a new color of flower, what gene interaction is present?
incomplete dominance
these contains bundles of tightly coiled DNA located within the nucleus of every cell in the body.
Chromosome
not a pioneer in genetic modification in organisms.
Gregor Mendel
variant of gene
allele
came to rise when he started studying 29,000 pea plants for hybridization.
Gregor Mendel
has already performed hybridization in sheep.
Karl Nestler
Gregor Mendel’s Laws
Law of Segregation
Law of Independent Assortment
If the color of a mango is a combination of red and yellow in the same fruit, what gene interaction is present?
co-dominance
test-cross that can produce offspring
parental generation
segment of DNA that is allocated for specific trait
gene
gene code
genotype
this occurs when the expression of the genes exceeds measurement.
over-dominance
To address the problem, he tabulated the traits, guess the alleles:
Flower Color
purple - P
white - p
these are expressed characteristics of an individual inherited from one generation to another.
Traits (phenotype)
both alleles have the same expression
homozygous
heredity
mechanism
interaction of alleles
1 gene only
allelic interaction
this occurs when only one of the alleles is expressed in the phenotype by masking the expression of the recessive allele.
complete dominance
traits that come from chromosome X and Y
sex-linked traits
These are the physical manifestation of genes.
phenotype
this occurs when the expression of the recessive gene is not completely masked by the expression of the dominant gene.
incomplete dominance
is the presence of different frequencies of traits among individuals or populations.
variation
the descent of traits from parents to offspring.
Generation
interaction of alleles in different genes
2 genes
non-allelic interaction
this occurs when the expression of the genes lacks dominance and recessiveness.
co-dominance
To address the problem, he tabulated the traits, guess the alleles:
Pod Color
yellow - Q
green - q
What is the ratio of the normal phenotypic expression in nature?
3:1
variation
diversity
activated variant of gene
dominant
It is the principle that explains that each parent has equal contribution in the genes of its offspring.
Law of Segregation
alleles have different expressions
heterozygous
genes of different trait do not affect other genes of different trait in expression. It means that expression of trait C will not affect the expression of trait D.
Law of Independent Assortment
subunit of chromosome where two (2) turns of DNA is wrapped around a set of eight (8) proteins called histones.
Nucleosome
result of any parental test-cross
flial generation
also known as inheritance, is the process of passing on of traits from parents to offspring from either sexual or asexual reproduction.
heredity
The peas are in constant differentiating characteristics due to
foreign pollen from wild peas leading to random crop yields.
expression of phenotype
trait
To address the problem, he tabulated the traits, guess the alleles:
Seed Color
yellow - Y
green - y
To address the problem, he tabulated the traits, guess the alleles:
Pod Shape
inflated - I
constricted - i
it is the different expressions of genes due to different interplay between genes.
Gene Interactions
It refers to the activated form of the gene.
dominant
Co-dominance, Over-dominance and Incomplete Dominance are examples of ___.
Allelic interaction
multiple genes are responsible for the trait expression
dihybrid cross
It is the biology of heredity (mechanism) and variation (diversity).
genetics
To address the problem, he tabulated the traits, guess the alleles:
Seed Shape
round - R
wrinkled - r
T or F
Co-dominance can also exist together with over-dominant genetic interactions.
True
expression of gene
phenotype
traits that come from chromosome 1 to 22
autosomal traits
inactivated variant of gene
recessive
these are the organism’s complete set of genes.
Genome
only one allele is inherited from each of the parent since chromosomes separate during meiosis.
Law of Segregation
T or F
All individuals sexually reproduced always inherit both genes from their parents.
Thus, each person always contains four alleles.
False
