Using R for dominant alleles and r for recessive alleles:
1. Rr
2. Rr
3. rr
4. rr
5. r
6. r
7. R
8. r
9. 50% Heterozygous (Rr) 50% Homozygous recessive (rr)
10. 50% Heterozygous Big feet (Rr) 50% Homozygous Small Feet (rr)
Answer:
Hypoxia is believed to be caused primarily by excess nutrients delivered from the Mississippi River in combination with seasonal stratification of Gulf waters. ... Stratification of fresh and saline waters prevents oxygen replenishment by mixing of oxygen-rich surface water with oxygen-depleted bottom water.
Answer:
reduced hybrid fertility
Explanation
The formation of mules from the cross between female horses (mares) and male donkeys (jacks) is an example of reduced fertility because the mules are sterile and they cannot give birth to babies.
Reason:
Because mule cannot produce sperms. This has to do with his genetics. A mule has 63 chromosomes in total. He gets 32 chromosomes from his mom (that is a horse) and 31 chromosomes from his Dad (that is a donkey). As we know, it is very important for reproduction that chromosomes hould be present in two sets with equal numbers.
To reproduce he needs equal number of chromosomes because we know during meiosis chromosomes segregate and half number goes in daughter cells. But in case of mules he has an extra chromosome due to which he cannot undergo correct meiosis and produce sperms. That is ahy he stays sterile throughout his life. This is called reduced hybrid fertility
Hope it helps!
If light is imagined as a flow of particles, the particles are called photons with each photon carrying a discrete packet of energy. ..
