Answer:
genes for flower color and edge shape are linked. They do not assort independently.
Explanation:
<u>Available data:</u>
- test cross between a purple-flowered pea plant having serrated leaves and a white-flowered pea plant having smooth edges.
- serrated leaves → dominant trait
- smooth edges → recessive trait
- purple color → dominant trait
- white color → recessive trait
- F1: 4 purple-serrated:1 purple-smooth:1 white-serrated:4 white-smooth.
There are two genes involved in the cross. The expected ratios are 1:1:1:1 because we assume genes assort independently. However, we see a different phenotypic distribution. When phenotypic ratios differ from the expected ones, it means that genes are linked.
To know if two genes are linked in the same chromosome, we must observe the progeny distribution. If individuals, whose genes assort independently, are test crossed, they produce a progeny with equal phenotypic frequencies 1:1:1:1. But if instead of this distribution, we observe a different one, that is that phenotypes appear in different proportions, we can assume that genes are linked in the double heterozygote parent
Some questions that can be answered by <em>Science</em> is:
-Is it possible to give nature and have shelter on other planets?
-What caused the global-warming?
-How can plane's fly?
Answer:
proteins are only able to function properly in their specific shape, they will typically stay in that configuration unless something forces them to change. When proteins change their shape, this is called denaturation. Some external forces that affect protein shape are pH and temperature
Answer:
A) NaCl will be exported from the red blood cells by facilitated diffusion.
Answer:
The correct answer is tropical rain forests.
Explanation:
The hot and moist biome witnessed close to the equator of the Earth is the tropical rainforest. The largest tropical rainforests in the world are found in Africa, South America, and Southeast Asia. About 60 to 160 inches of rainfall is witnessed in the tropical rainforests throughout the year. Due to this, the leaves of the trees found in the tropical rainforests possess unique features that help them to survive.
The leaves of the trees found in the tropical rainforest possess drip tips that help them to cope with the extreme amount of rainfall that takes place throughout the year. The drip tips help the drop of rains to run off briskly from the surface of the leaves. This adaptation helps the plants in the region to prevent the growth of bacteria and fungus.
