Answer:B
Explanation:
Codominant is when neither allele is recessive so they are both expressed in the phenotype
Earth's orbit and climate change
Rock cycle- the prices in which rocks undergo in the earths crust, involving igneous instruction, uplift, erosion, transportation, deposits as sedimentary rock.
Tectonic cycle- the movement of large portions of earths crust (plates) the driving forces that move these plates are a combination of events that occurs within the earth.
Water cycle- the path of all water followers as it moves around earth in different states, water vapor, ice, water...
Carbon cycle- series of processes by which carbon compounds are inverted in the environment involving the incorporation of carbon dioxide into living tissue by photosynthesis.
Nitrogen cycle- series of processes by which nitrogen and is compounds are introverted in the environment and living organisms.
Phosphorus cycle-biochemical cycle that describes the movement of phosphorus through the lithosphere, hydrosphere, and biosphere.
Answer:
The correct answer would be -
1- YR, Yr, yR and yr.
2. Yr, yR
3. YR, yr
4. YR, Yr, yR & yr
Explanation:
A mature male or female haploid germ cell that fuses with another gamete of the opposite sex during the process of fertilization to make a zygote in sexual reproduction.
The law of Independent Assortment presented by Mendel says that alleles for different traits are passed and assort independently of one another in the gametes.
1. If Y and R on different chromosomes then they will produce four gametes and assort independently - YR, Yr, yR & yr.
2) If Y and R on the same chromosomes and no crossing over occurs then they will produce only two gametes as Y and R will not come together - Yr & yR.
3). if dominant Y and recessive r are on the same chromosome, no crossing over then only two gametes will form as Y and r will not assort together - YR & yr.
4). if dominant Y and R are on the same chromosome, 50% crossing over produces 4 types of gametes, YR, Yr, yR & yr.
The role is that it helps you with the urinal system and makes the things in your body go out of the body. (hopes it at least helped a little! (=^T^=)
