Persiapan Formatif Kelas 9 Angkatan 5

Explanation
The given correct answer is "Fenotip". Fenotip refers to the observable characteristics or traits of an organism, such as the red color and sweet taste of a tomato. It is the result of the interaction between the organism's genotype (genetic makeup) and the environment.

Explanation
The correct answer is "Gen". In genetics, a gene is the basic unit of heredity that is passed down from parents to their offspring. Genes carry the instructions for the development and functioning of an organism. They determine traits such as hair color, eye color, and height. Therefore, the factor that carries inherited traits from parents to their descendants is called a gene.

Explanation
Kromosom adalah sel yang berisi struktur seperti benang yang membawa informasi genetik. Kromosom terdapat di dalam nukleus sel dan terdiri dari DNA yang terpilin menjadi benang-benang yang disebut kromatin. Kromosom mengandung gen-gen yang mengodekan instruksi-instruksi untuk pewarisan sifat-sifat dari generasi ke generasi.

Explanation
The characteristics of living organisms are determined by both genes and the environment they are in. Genes provide the instructions for the development and functioning of an organism, while the environment influences how these genes are expressed. Genes determine the potential traits an organism can have, but the environment can affect how these traits are actually expressed. This interaction between genes and the environment is what ultimately determines the characteristics of living organisms.

Explanation
The correct answer is "St dan sT". This is because when an individual with genotype SsTT reproduces, there is a possibility of the gametes S and T being produced. The gametes S and T can combine with gametes from another individual to form the genotypes St and sT.

Explanation
Kromosom terletak di dalam nukleus. Nukleus adalah struktur yang terdapat di dalam sel dan berfungsi sebagai pusat pengendalian sel. Kromosom adalah struktur yang terdiri dari DNA dan protein yang membawa informasi genetik. Mereka terletak di dalam nukleus karena nukleus adalah tempat utama di mana replikasi DNA dan transkripsi gen terjadi. Selain itu, kromosom juga terletak di dalam nukleus karena nukleus melindungi DNA dari kerusakan dan memastikan bahwa informasi genetik dapat diturunkan dengan benar saat sel membelah.

Explanation
The correct answer is 23 Pasang. This is because humans typically have 23 pairs of chromosomes, totaling 46 chromosomes. Each pair consists of one chromosome inherited from the mother and one from the father. These chromosomes contain the genetic information that determines various traits and characteristics in an individual.

Explanation
Dihibrid adalah istilah yang digunakan untuk menggambarkan perkawinan silang antara dua individu yang memiliki dua sifat yang berbeda. Dalam konteks ini, perkawinan silang terjadi antara dua individu dengan dua sifat yang berbeda. Istilah-istilah lain seperti monohibrid, trihibrid, dan polihibrid tidak sesuai karena mereka mengacu pada perkawinan silang dengan jumlah sifat yang berbeda.

Explanation
Mendel menggunakan kacang ercis dalam penelitiannya.

Explanation
The given genotypes of the offspring indicate that the first parent (KK) has a dominant allele for curly hair, while the second parent (kk) has two recessive alleles for straight hair. The genotype of the F-1 generation is Kk, which means that each offspring inherits one dominant allele for curly hair from the first parent and one recessive allele for straight hair from the second parent. This results in wavy hair, as the dominant allele for curly hair is not fully expressed in the presence of the recessive allele for straight hair.