Answer:
B
Explanation:
Mendel discovered that an organism receives two forms of a gene called allele from each parent. This alleles combine to form the genotype of that organism, which in turn determines the phenotype.
Mendel crossed purebreeding plants that produced only tall and short plants respectively. He got an all tall F1 offspring. He then self-crossed the F1 offsprings to get a phenotypic ratio of 3:1 in the F2 offsprings. He discovered that the tall allele was dominant over the short allele for the height gene in pea plants. This is because the tall alleles masked the expression of the short allele in the F1 generation making them all exhibit tall traits.
The F1 are regarded as hybrids or heterozygotes because they were a mixture or combination of two different alleles. This mixture was confirmed in the F2 offsprings that produced 3 tall plants and 1 short plant, showing that the recessive allele was still present but masked in the heterozygotic combination.
It’s b it has stated evidence in the passage.
Answer: B
Explanation:
A - not correct since polypeptide chains are formed in ribosomes which exist in the cytoplasm
C. not correct -protein function is determined by DNA
D. not correct - 3 nucleotides aka a codon is encoded into a single amino acid.
Temporal lobe
The brain has four lobes that are found in the cortex.
The lobes are:
The frontal lobe - logic and reasoning
The parietal lobe - movement
The temporal lobe - auditory processing area
The occipital lobe - the visual processing area
Answer:
Mass and distance
Explanation:
Gravity is the force that gives weight to objects and causes them to fall to the ground when dropped. Two major factors, mass and distance, affect the strength of gravitational force on an object. You witness the first factor in everyday life - more massive objects are heavier.
