The correct answers are:
3) the nuclei of most euk cells contain chromosomes found in homologous pairs - diploid. one member from mother, one from father. At meiosis, one of two members segregates into daughter nucleus. Gametes have one set of chrms - haploid.
4) during formation of haploid cells, diff types (nonhomologous) chrms segregate independently from eachother
Chromosomes are structures that represent the genetic material of an organism and consist of DNA and proteins packed together.
The chromosome theory of inheritance claims that :
Chromosomes are organized in homologous pairs, one member from the mother and one from the father. During the meiosis (formation of gametes) the members of a homologous pair separate, each gamete receives one member which is selected randomly. The members of different chromosome pairs (nonhomologous) are sorted into gametes independently of one another in meiosis.
The chromosome theory explains the behavior of chromosomes during meiosis and helps understanding why genes are inherited according to Mendel’s laws.
2nd one because plants take in light for photosynthesis not water
The correct answer is C.
The zygote is a single fertilized egg cell that the embryo develops from.
This one cell possesses one copy of DNA that is going to be passed to all other cells in the embryo because all other cells of the embryo develop through mitotic divisions of the zygote.
Therefore, if a mutation happens in the zygote DNA, all of the cells in the embryo are going to have it as well.
Answer:
Proteins, carbohydrates, nucleic acids, and lipids are the four major classes of biological macromolecules.
Macromolecules are made up of single units known as monomers that are joined by covalent bonds to form larger polymers.
Explanation:
I'll do my best to help, but do keep in mind that this is just an educated guess on my part.
Characteristics of Living Viruses:
- Uses energy (nonliving things can't use energy, for obvious reasons)
- Exhibits growth and development (for the same reasons as above, nonliving things can't grow)
- Made up of one or more cells (cells are alive, so nonliving viruses can't be made up of living things)
- Possesses internal organization (viruses can be complex, as most living things are)
- Eliminates waste
Characteristics of Nonliving Viruses:
- Defined boundary (this is a bit vague because a defined boundary isn't suggestive of life or not, so it could really be either or)
Because most of the answers fit with the living characteristics, it makes me think there is something wrong with my answer, but I did some research and that seems pretty accurate. However, I'm not a professional, so I could be wrong. I'm sorry I couldn't help more
