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Genetics Lecture > Genetic Interactions Part 1 > Flashcards

Genetic Interactions Part 1 Flashcards

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Biology 101 flashcards
1
Q

allelic interactions

A

complete dominance
incomplete dominance
co-dominance
over-dominance

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2
Q

To address the problem, he tabulated the traits, guess the alleles:

Stem Length

A

long - T
short - t

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3
Q

a set of eight (8) proteins

A

histones

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4
Q

these are a set of information from the DNA that encodes for specific trait or group of traits.

A

Genes (genotype)

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5
Q

To address the problem, he tabulated the traits, guess the alleles:

Flower Position

A

axil - A
terminal - a

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6
Q

only one gene is responsible for the trait expression

A

monohybrid cross

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7
Q

What is the genetic interaction involved when a cat has one green eye and other blue eye?

A

co-dominance

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8
Q

If the offspring of a monohybrid test cross results in a new color of flower, what gene interaction is present?

A

incomplete dominance

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9
Q

these contains bundles of tightly coiled DNA located within the nucleus of every cell in the body.

A

Chromosome

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10
Q

not a pioneer in genetic modification in organisms.

A

Gregor Mendel

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11
Q

variant of gene

A

allele

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12
Q

came to rise when he started studying 29,000 pea plants for hybridization.

A

Gregor Mendel

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13
Q

has already performed hybridization in sheep.

A

Karl Nestler

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14
Q

Gregor Mendel’s Laws

A

Law of Segregation
Law of Independent Assortment

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15
Q

If the color of a mango is a combination of red and yellow in the same fruit, what gene interaction is present?

A

co-dominance

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16
Q

test-cross that can produce offspring

A

parental generation

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17
Q

segment of DNA that is allocated for specific trait

A

gene

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18
Q

gene code

A

genotype

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19
Q

this occurs when the expression of the genes exceeds measurement.

A

over-dominance

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20
Q

To address the problem, he tabulated the traits, guess the alleles:

Flower Color

A

purple - P
white - p

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21
Q

these are expressed characteristics of an individual inherited from one generation to another.

A

Traits (phenotype)

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22
Q

both alleles have the same expression

A

homozygous

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23
Q

heredity

A

mechanism

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24
Q

interaction of alleles
1 gene only

A

allelic interaction

25
Q

this occurs when only one of the alleles is expressed in the phenotype by masking the expression of the recessive allele.

A

complete dominance

26
Q

traits that come from chromosome X and Y

A

sex-linked traits

27
Q

These are the physical manifestation of genes.

A

phenotype

28
Q

this occurs when the expression of the recessive gene is not completely masked by the expression of the dominant gene.

A

incomplete dominance

29
Q

is the presence of different frequencies of traits among individuals or populations.

A

variation

30
Q

the descent of traits from parents to offspring.

A

Generation

31
Q

interaction of alleles in different genes
2 genes

A

non-allelic interaction

32
Q

this occurs when the expression of the genes lacks dominance and recessiveness.

A

co-dominance

33
Q

To address the problem, he tabulated the traits, guess the alleles:

Pod Color

A

yellow - Q
green - q

34
Q

What is the ratio of the normal phenotypic expression in nature?

A

3:1

35
Q

variation

A

diversity

36
Q

activated variant of gene

A

dominant

37
Q

It is the principle that explains that each parent has equal contribution in the genes of its offspring.

A

Law of Segregation

38
Q

alleles have different expressions

A

heterozygous

39
Q

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.

A

Law of Independent Assortment

40
Q

subunit of chromosome where two (2) turns of DNA is wrapped around a set of eight (8) proteins called histones.

A

Nucleosome

41
Q

result of any parental test-cross

A

flial generation

42
Q

also known as inheritance, is the process of passing on of traits from parents to offspring from either sexual or asexual reproduction.

A

heredity

43
Q

The peas are in constant differentiating characteristics due to

A

foreign pollen from wild peas leading to random crop yields.

44
Q

expression of phenotype

A

trait

45
Q

To address the problem, he tabulated the traits, guess the alleles:

Seed Color

A

yellow - Y
green - y

46
Q

To address the problem, he tabulated the traits, guess the alleles:

Pod Shape

A

inflated - I
constricted - i

47
Q

it is the different expressions of genes due to different interplay between genes.

A

Gene Interactions

48
Q

It refers to the activated form of the gene.

A

dominant

49
Q

Co-dominance, Over-dominance and Incomplete Dominance are examples of ___.

A

Allelic interaction

50
Q

multiple genes are responsible for the trait expression

A

dihybrid cross

51
Q

It is the biology of heredity (mechanism) and variation (diversity).

A

genetics

52
Q

To address the problem, he tabulated the traits, guess the alleles:

Seed Shape

A

round - R
wrinkled - r

53
Q

T or F

Co-dominance can also exist together with over-dominant genetic interactions.

A

True

54
Q

expression of gene

A

phenotype

55
Q

traits that come from chromosome 1 to 22

A

autosomal traits

56
Q

inactivated variant of gene

A

recessive

57
Q

these are the organism’s complete set of genes.

A

Genome

58
Q

only one allele is inherited from each of the parent since chromosomes separate during meiosis.

A

Law of Segregation

59
Q

T or F

All individuals sexually reproduced always inherit both genes from their parents.

Thus, each person always contains four alleles.

A

False

Genetics Lecture (6 decks)

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