shahzaib hassan BIOLOGY   -   Genetics

If an individual has two identical alleles for a trait, they are said to be:

Homozygous means having two of the same alleles, like two matching socks. If the alleles are different, it?s called heterozygous, like wearing one red sock and one blue sock.
shahzaib hassan BIOLOGY   -   Genetics

What is the role of tRNA in translation?

tRNA is like a delivery truck bringing the right amino acids to the ribosome, where proteins are made. Each tRNA matches up with a specific part of the mRNA to make sure the right protein gets built.
shahzaib hassan BIOLOGY   -   Genetics

Which of the following best explains why siblings can look different from each other?

During meiosis, chromosomes get shuffled and split up differently each time, like shuffling a deck of cards. That?s why siblings can look different ? they inherit a different mix of genes.
shahzaib hassan BIOLOGY   -   Genetics

What term describes a change in the sequence of DNA?

A mutation is like a typo in the instruction manual (DNA). Sometimes, it doesn't matter much, but other times, it can change how the cell works or looks.
shahzaib hassan BIOLOGY   -   Genetics

What is the purpose of a Punnett square in genetics?

A Punnett square is like a chart or map that shows the possible combinations of genes from two parents. It helps us predict the traits their children might inherit.
shahzaib hassan BIOLOGY   -   Genetics

In genetic terms, what is a recessive allele?

A recessive allele is like a shy kid in a group ? it only shows up when there are two of them together. If a dominant allele is present, the recessive one stays hidden.
shahzaib hassan BIOLOGY   -   Genetics

Which type of RNA carries the genetic information from DNA to the ribosome?

mRNA (messenger RNA) is like a note passed from the teacher (DNA) to the worker (ribosome), telling them what kind of protein to make. It carries instructions from the DNA in the nucleus to the ribosome in the cytoplasm.
shahzaib hassan BIOLOGY   -   Genetics

What kind of inheritance pattern is displayed when both alleles are equally expressed in a heterozygous organism?

In codominance, both traits are like mixing red and blue marbles ? you can see both colors equally. For example, in blood types, A and B alleles are both expressed equally if both are present (AB blood type).
shahzaib hassan BIOLOGY   -   Genetics

What is the role of ribosomes in the cell?

Ribosomes are the protein-making factories of the cell. They follow the instructions from the RNA to string together amino acids and make proteins, which do most of the work inside cells.
shahzaib hassan BIOLOGY   -   Genetics

Which nitrogenous base is not found in RNA?

RNA is like a copy of a page from a DNA book, but it doesn't use the "T" (thymine). Instead, it uses "U" (uracil). DNA and RNA are very similar, but this is one key difference.

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