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polet [3.4K]
4 years ago
14

What conclusions can you draw about the results of your first cross, between ahomozygous red bull (RR) and a heterozygous red co

w (Rr)
Biology
1 answer:
Vaselesa [24]4 years ago
7 0
The first cross will result in four offspring, all red but with two homozygous and two heterozygous, hence the conclusion is that the resultant offspring will be in the ratio of 1:1 in the case of crossing a heterozygous and a homozygous trait possessors 
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1. Most familiar life forms live in regions of biomes that humans inhabit. (1 point)
Genrish500 [490]

Answer:

1. The first statement is true. A biome is defined as a large set of naturally occurring plants and animals occupying a major habitat. For e.g. forest, dessert, grasslands etc.

2. The given statement is True. Biodiversity is defined as the variety of plants and animals exists or existed in the world or in any specific habitat. The high level of biodiversity is important and beneficial for the environment.

3. This statement is False. Outside force such as earthquake, zone hole etc can certainly cause changes in the organism. For example, UV rays can cause cancer in an organism, dark colorization of peppered moth during industrial revolution.

4. It is True as species is defined as a group of organisms capable of interbreed and share common characteristics. It is the basic unit of biological classification. For example, <em>sapiens </em>is the species of human being.

5. Yes, the given statement is true. Charles Robert Darwin famous naturalist, biologist, and geologist. He was best known for his work in the field of evolution and gave the theory of natural selection. He is also known as the father of evolution.

6. No, all scientists were not agreed with Charles Darwin, for example, Lamarck, Weismann etc. However, Neo-Darwinism was much more accepted that Darwin original theory. Hence, the given statement is false.

7. Natural selection is one of the process of evolution. It sates that organisms better suited and adapted to their environment have better chances of survival. Organisms acquire new characteristics over the generations in order to adapt in a environment. Hence, the given statement is false.

8. The statement is true. However, recently it has been found that there are some bacteria which can inhabit the extreme conditions. They are known as extremophiles, for example, halophiles, thermophiles etc.

9. Yes the statement is true. These organisms are known as extremophiles, for example, halophiles (which live in high saline conditions), thermophiles (can live in high temperatures) etc.

10. This statement is false as there are many species which have not been discovered yet.

4 0
3 years ago
Name ALL the alleles that control human blood groups.​
Naily [24]

Human blood groups are governed by three alleles. These are called I A ; I B ; I O .

I B shows the codominance

I O is recessive to both other alleles

8 0
2 years ago
Which two functions of the skeleton depend on the dynamic nature of bone?
Katarina [22]

Solution:

Support and storage of minerals these are the two functions of the skeleton depend on the dynamic nature of bone.

Thus this is the required answer.

8 0
3 years ago
Small molecules are combined to form larger ones which can eventually form a
anzhelika [568]

Answer:

Condensation polymerization

7 0
3 years ago
A small gap, called the _________ occurs at the synapse.
sergejj [24]

Answer:

Synaptic cleft

Explanation:

Synapse is the region where the impulse is conducted between two neurons. This occurs because two neurons are in maximum possible proximity to each other at the synapse.

However, there is no physical contact between two neurons even at the synapse. And a small space is present between two neurons at synapse. This gap is called the synaptic cleft. The neurotransmitters are released in this cleft.

7 0
4 years ago
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