Question

which process happens at the ribosome?
transcription
translation
replication
gene regulation
which of these is an example of environmental control of gene expression?
dna replication
cold temperatures activating survival genes in plants
a cell dividing into two identical cells
removing ribosomes from the cytoplasm

Explanation:

• For the first question: Ribosomes are the sites where translation occurs. Translation is the process of synthesizing proteins from mRNA. Transcription occurs in the nucleus (in eukaryotes), replication is mainly about DNA duplication (not at ribosomes), and gene regulation is a broader process that controls gene expression (not specifically happening at ribosomes).
• For the second question: Environmental control of gene expression means that an external environmental factor (like cold temperature) influences which genes are expressed. DNA replication is a normal cellular process for DNA duplication, a cell dividing into two identical cells is related to cell division (mitosis/meiosis), and removing ribosomes from the cytoplasm is not an example of environmental control of gene expression. Cold temperatures (an environmental factor) activating survival genes in plants is a clear example of environmental control of gene expression.

Answer:

• First question: Translation
• Second question: Cold temperatures activating survival genes in plants