Up to Genetics Test

Front

What is incomplete dominance in genetics?

Back

Incomplete dominance occurs when one allele is not completely dominant over another, resulting in a blended phenotype for heterozygous offspring.

Front

What does the nucleotide sequence UUU code for in protein synthesis?

Back

The nucleotide sequence UUU codes for the amino acid phenylalanine.

Front

What happens to a skin cell placed in a 50% salt water solution if it is 50% water?

Back

The skin cell will stay the same size.

Front

How do you transcribe the DNA sequence TACGTTACT?

Back

The transcription of the DNA sequence TACGTTACT results in the RNA sequence AUGCAAUGA.

Front

What is the relationship between temperature and the expression of the gene for albinism in Siamese cats?

Back

The expression of the gene for albinism in Siamese cats is controlled by temperature, leading to color patterns based on body temperature.

Front

Define the term 'allele' in genetics.

Back

An allele is a variant form of a gene that can produce different traits.

Front

What is the role of mRNA in protein synthesis?

Back

mRNA (messenger RNA) carries the genetic information from DNA to the ribosome, where proteins are synthesized.

Front

Explain the concept of codons in genetics.

Back

Codons are sequences of three nucleotides in mRNA that correspond to specific amino acids or stop signals during protein synthesis.

Front

What is the significance of the central dogma of molecular biology?

Back

The central dogma describes the flow of genetic information from DNA to RNA to protein, outlining the processes of transcription and translation.

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles express their traits even in the presence of a recessive allele, while recessive alleles only express their traits when paired with another recessive allele.