PRETEST ONLINE 3 DASAR-DASAR PEWARISAN MENDEL

2.

Bentuk alternatif suatu gen tertentu dinamakan

Alel
Lokus
Parental
Faktor herediter
Filial

Correct Answer

A. Alel

Explanation

An alel is an alternative form of a specific gene. It is one of the possible versions of a gene that can exist at a particular locus on a chromosome. Each individual has two alels for each gene, one inherited from each parent. These alels can be the same (homozygous) or different (heterozygous). The presence of different alels can result in variations in traits among individuals.

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3.

Berdasarkan diagram di atas, simbol D dan d dinamakan _________

Alel
Homozigot
Heterozigot
Genotipe
Fenotipe

Correct Answer

A. Alel

Explanation

Based on the given diagram, the symbols D and d are named alleles. Alleles are alternate forms of a gene that can occupy the same locus on a specific chromosome. They can be dominant or recessive, and determine the traits or characteristics of an organism. In this case, the symbols D and d represent different alleles that may determine different traits or characteristics.

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4.

Pada diagram di atas, tinggi dan pendek adalah

Genotype
Fenotipe
Heterozigot
Homozigot
Filial

Correct Answer

A. Fenotipe

Explanation

The diagram mentioned in the question is not provided, so it is difficult to give a specific explanation for the correct answer. However, based on the options given, "fenotipe" is the most likely correct answer. Phenotype refers to the physical characteristics or traits of an organism, which can be observed and measured. It is determined by the interaction of an organism's genotype (genetic makeup) and its environment. Therefore, in the context of the diagram, it is reasonable to assume that the diagram is depicting or representing some physical characteristics or traits, hence the correct answer being "fenotipe".

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5.

Jika ekpresi gen A menutupi ekspresi gen a, maka gen A bersifat _______. Tulis jawaban Anda di kotak di bawah ini (jawaban hanya satu kata)

Correct Answer
dominan

Explanation
If the expression of gene A covers the expression of gene a, then gene A is said to be dominant.

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6.

Di antara persilangan di bawah ini yang merupakan persilangan dihibrid adalah

AA x aa.
AB x ab
Ab x aB.
AABB x aabb.
AAAA x BBBB.

Correct Answer

A. AABB x aabb.

Explanation

The correct answer is AABB x aabb. This is a cross between two individuals with different alleles for two different traits (A and B). The uppercase letters (A and B) represent dominant alleles, while the lowercase letters (a and b) represent recessive alleles. This type of cross is called a dihybrid cross because it involves the inheritance of two different traits. The resulting offspring will have a genotype of AaBb, showing a combination of both dominant and recessive alleles for both traits.

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7.

Persilangan yang hanya menyangkut pola pewarisan satu macam sifat dinamakan persilangan …………..Tulis jawaban Anda di kotak di bawah ini (jawaban hanya satu kata)

Correct Answer
monohibrid

Explanation
The correct answer is "monohybrid" because the question is asking for the term used to describe a cross that involves the inheritance pattern of only one trait. "Mono" means one, and "hybrid" refers to the offspring resulting from the cross. Therefore, "monohybrid" is the appropriate term to describe this type of cross.

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8.

Persilangan suatu individu dengan salah satu tetuanya disebut ____________

Monohibrid
Dihibrid
Test-cross
Filial
Back cross

Correct Answer

A. Back cross

Explanation

A back cross refers to the process of crossing an individual with one of its parents. This is done to introduce or reinforce specific traits from the parent in the offspring. In this case, the question is asking for the term that describes the crossing of an individual with one of its parents, which is known as a back cross.

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9.

Perkawinan individu dengan tetuanya yang homozigot resesif dinamakan …………….

Monohibrid
Dihibrid
Test-cross
Rekombinasi
Back cross

Correct Answer

A. Test-cross

Explanation

A test-cross is a type of breeding experiment in which an individual with a homozygous recessive genotype is crossed with an individual of unknown genotype. This is done to determine whether the unknown individual is heterozygous or homozygous dominant for a particular trait. In this case, the question is asking for the term used to describe the mating of an individual with a homozygous recessive genotype, which is a test-cross.

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10.

Penutupan ekspresi suatu gen nonalelik dinamakan ............Tulis jawaban Anda di kotak di bawah ini (jawaban hanya satu kata)

Correct Answer
epistasis

Explanation
Epistasis is the term used to describe the phenomenon where the expression of one gene is influenced by another gene. In this case, the closure of the expression of a non-allelic gene is referred to as epistasis. Epistasis can occur when one gene masks or suppresses the expression of another gene, leading to a modified phenotype.

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1

Pretest Online 3 Dasar-dasar Pewarisan Mendel

Susunan genetik yang mendasari munculnya suatu sifat individu disebut dengan

Quiz Preview

Bentuk alternatif suatu gen tertentu dinamakan

Berdasarkan diagram di atas, simbol D dan d dinamakan _________

Pada diagram di atas, tinggi dan pendek adalah

Jika ekpresi gen A menutupi ekspresi gen a, maka gen A bersifat _______. Tulis jawaban Anda di kotak di bawah ini (jawaban hanya satu kata)

Di antara persilangan di bawah ini yang merupakan persilangan dihibrid adalah

Persilangan yang hanya menyangkut pola pewarisan satu macam sifat dinamakan persilangan …………..Tulis jawaban Anda di kotak di bawah ini (jawaban hanya satu kata)

Persilangan suatu individu dengan salah satu tetuanya disebut ____________

Perkawinan individu dengan tetuanya yang homozigot resesif dinamakan …………….

Penutupan ekspresi suatu gen nonalelik dinamakan ............Tulis jawaban Anda di kotak di bawah ini (jawaban hanya satu kata)