mendelian inheritance
When organisms produce offspring similar to themselves, it is called "asexual reproduction" in the case of single-celled organisms and some plants, where offspring are genetically identical to the parent. In multicellular organisms, this process is often referred to as "sexual reproduction," which combines genetic material from two parents, resulting in offspring that share traits from both. Both processes ensure the continuation of genetic traits within a species.
Selective breeding is the technique in which two specific organisms are chosen for reproduction to see what traits their offspring display. This process aims to promote certain desirable traits in the offspring and has been used for centuries to enhance qualities in plants and animals.
A type of offspring reproduction is sexual reproduction, where two parent organisms contribute genetic material to produce offspring with a unique combination of traits.
The concept of altered characteristics of organisms across generations was primarily explored by Gregor Mendel in the 19th century through his experiments with pea plants. Mendel's work laid the foundation for the field of genetics, demonstrating how traits are inherited from one generation to the next. His principles of inheritance revealed how traits could be dominant or recessive, influencing the characteristics of offspring.
mendelian inheritance
Lamarck's ideas about evolution include the concept that differences among the traits of organisms arise as a result of the use or disuse of those traits. This concept is known as the inheritance of acquired characteristics or the theory of soft inheritance. According to Lamarck, organisms can pass on traits that they acquire during their lifetime to their offspring.
Offspring inherit traits in most single-celled organisms and in most many celled organisms through DNA. DNA controls what genes the organism will inherit.
lamarck
Jean-Baptiste Lamarck is the French naturalist who proposed the theory of inheritance of acquired traits, also known as Lamarckism. He suggested that organisms can pass on traits that they acquire during their lifetime to their offspring.
diatoms
The offspring of two different organisms are called hybrids. These offspring inherit traits from both parent organisms.
Inheritance of traits in organisms is controlled by genes, which are segments of DNA that code for specific traits. These genes are passed from parents to offspring through sexual reproduction. The combination of genes from both parents determines the traits that are expressed in the offspring.
Lamark
This concept is known as natural selection, where organisms that possess advantageous traits for their environment have a higher likelihood of surviving, reproducing, and passing on those traits to their offspring. Over time, this process leads to the accumulation of beneficial traits in a population, increasing its overall fitness.
Changes in genes occur through processes such as mutation, genetic recombination, and gene duplication. These changes can result in variations in traits that can be passed down to offspring through reproduction.
They pass on traits. There are recessive traits and dominant traits. The dominant trait is normally the one that overpowers recessive