GENETICS Flashcards

(42 cards)

1
Q

It is the branch of biology that studies genes, heredity, and variation in living organisms.

A

Genetics

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2
Q

are specific sequences of DNA that serve as instructions for building proteins. it is also mendel’s observed “factors”

A

Genes

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3
Q

are essential molecules that perform various functions in the body, such as enzyme activity, structural support and immune defense.

A

Protein

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4
Q

Each gene consists of a unique sequence of nucleotides, what are these?

A
  1. Adenine
  2. Thymine
  3. Guanine
  4. Cytosine
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5
Q

It explores how traits are passed from parents to offspring through DNA and how genetic differences contribute to diversity among individuals.

A

Genetics

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6
Q

Parts of Chromosome X

A
  1. Telomeres
  2. Short and Long Arm
  3. Centromere
  4. DNA Molecule
  5. Sister Chromatids
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7
Q

are long, thread-like structures made of DNA and proteins.

A

Chromosomes

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8
Q

Human have ___ chromosomes which are ___ pairs each.

A

46 ; 23

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9
Q

It is the process by which traits and characteristics are passed from parents to offspring through genes.

A

Heredity

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10
Q

These are traits that are manifested.

A

Dominant Traits

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11
Q

These are traits that are often masked off.

A

Recessive Traits

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12
Q

Different Alleles

A

Heterozygous

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13
Q

Two Identical Alleles

A

Homozygous

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14
Q

It is controlled by genes.

A

Heredity

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15
Q

One of two or more alternative forms of gene in the same location on chromosome

A

Allele

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16
Q

It determines an organism’s genotype

A

Genes

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17
Q

It determines organism’s phenotype

18
Q

It is an observable traits of an organism

19
Q

Genetic constitution that an individual inherits; it tells the body how to things

20
Q

In a heterozygote, one trait will conceal the presence of another trait for the same characteristic.

A

Law of Dominance

21
Q

Fertilization between two true-breeding parents that differ only in the characteristic being studied. Results are referred to as ______________.

A

Monohybrid Cross

22
Q

Punnett Square was devised by

A

Reginald Punnett

23
Q

states that each organism carries two alleles for each trait, but only one allele is passed on to offspring during gamete formation.

A

Law of Segregation

24
Q

A way to determine if an organism expressed a heterozygous or homozygous dominant trait.

25
Genes do not influence each other with regards to the sorting of alleles into gametes, and every possible combination of alleles for every gene is equally likely to occur.
Law of Independent Assortment
26
is a genetic pattern where the offspring's phenotype is a blend of the parents' traits because neither allele is completely dominant over the other.
Incomplete Dominance
27
is a genetic pattern where both alleles are fully and equally expressed in the phenotype of the offspring, without blending.
Codominance
28
is a type of inheritance where multiple genes work together to influence a single trait, resulting in a wide range of variations (e.g., height, skin color).
Polygenic Inheritance
29
It refers to the differences in DNA sequences among individuals within a population.
Genetic Variation
30
is a permanent change in the DNA sequence of a gene.
Mutation
31
They occur naturally and can also be triggered by environmental factors.
Mutation
32
This process is crucial for evolution and survival, as it allows species to adapt to changing environments.
Genetic Variation
33
It can alter the function of genes, sometimes leading to physical or biological changes in an organism.
Mutation
34
It is the direct manipulation of an organism's DNA to modify its traits, improve its function, or introduce new characteristics. Scientists use this technology to add, remove, or alter genes in plants, animals, and even humans.
Genetic Engineering
35
This is proposed by Hippocrates, every part of first introduced the idea that all parts of the body emit "seed-like" particles that travel to the reproductive organs and influence inheritance.
Pangenesis
36
What do Darwin calls the particle that he later revived and modified the idea in the 19th century with his own version of pangenesis?
Gemmules
37
believed heredity was driven by a "vital heat" from the male's semen shaping the menstrual blood of the female into a new organism, with traits resulting from the mixture of parental "form" and "matter." but not acquired traits.
Aristotle's Concept of Heredity
38
is the outdated idea that offspring are a smooth, average mixture of their parents’ traits, like mixing paint colors.
Blending of Inheritance
39
The early proponent of Pangenesis
Hippocrates
40
Proponent of Blending of Inheritance
Jean Baptiste de Lamarck
41
Inside a sperm or egg, there existed a tiny, fully formed human called a ____________
Homunculus
42
During reproduction, the homunculus would grow in size but would not undergo development
Preformationism