Answer:
- Only some molecules move from a higher concentration to a lower concentration.
Explanation:
Selective permeability of the membrane means that membrane regulates which molecules (ions, substances) and how much of them can pass through it. Permeabilty of the membrane is determinated by its structure (hydrophobic heads and hydrophilic tails, cholesterol), temperature
The simplest form of transport through membrane is diffusion, passive transport of the molecule down its concentration gradient 9from higher to lower concentration). Some molecules can move down their concentration gradients directly, some have to pass through membrane proteins in a process called facilitated diffusion while others require energy and use active transport.
Answer:
The answer is D
Chromosomes contain genes, and genes are made of DNA.
Answer:
6) 1. Crossing over: crossing over can mean any number of things. It could mean transforming, like making a change, or something as silly as crossing a bridge. In biological terms, it means transforming onto another stage, like a caterpillar making a chrysalis so it can cross over ino the final stage of its life: a beautiflul butterfly.
2. Its during the S phase when the chromosomes are replicated also they significant cell growth occurs.
7) 1. The parent cell in mitosis starts out as a diploid cell and it splits into two haploid daughter cells.
2. diploid spores that undergo meiosis.
8) I don’t know
9) 1. Sex cells have half a set of chromosomes, 23, while parent cells have 46.
Explanation: that all the answer there but for number 8 it look like the same question but uh..., hope this help
I think ( D ) hope I helped
Explanation:
The stop codon mutation caused her proteins to not be made correctly and were actually shorter. ... Stem cell therapy helped Lucy fight off the extra stop protein which allowed her to make more proteins and break down deoxyadenosine normally.
