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yarga [219]
3 years ago
13

Is the air we breathe an element, a mixture or a compound

Biology
1 answer:
Vika [28.1K]3 years ago
5 0
I think its an element but i could be wrong
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Part 1: crossing beak color and tail-feather length cross a yyll (heterozygous parent with dominant traits) with yyll (homozygou
Luba_88 [7]
Since you forgot to put capital letters i assume it's like this:

1)A <span>Cross between YyLl (heterozygous parent with dominant traits) and yyll (homozygous parent with recessive traits).

</span><span> 2)offspring YyLl: 400, Yyll: 100, yyLl: 100 and yyll: 400

</span>The recombinant offspring are allele combinations that are not directly inherited from the parents.
The parents combinations:<span>YyLl and yyll,
</span>The recombinant combinations: Yyll and yyLl
The other types are exacly like the parents so they are not recombinant.

answer: Yyll and yyLl


3 0
3 years ago
Witch steps are important when designing and conducting a scientific experiment
enot [183]
The scientific method :)

8 0
3 years ago
You and other scientists have been able to get the same results after many experiments. What is this proven data called?
Katena32 [7]
Add more Subjects or do It again

8 0
3 years ago
Which cross shows both parents having two different alleles for each of two different genes?
shtirl [24]

Answer:

The correct option is Number 1. AaBb x AaBb

Explanation:

Genes can be described as basic hereditary units. The genes are made up of DNA.

A gene carries two alleles for a particular trait. These alleles are present at the same loci in the homologous chromosomes. If the two alleles are similar then they are termed as homozygous e.g AA, BB. If the alleles for a trait are different then they are termed as heterozygous e.g Aa and Bb.

7 0
3 years ago
The sternocleidomastoid muscles help to flex the neck. What are their antagonists
White raven [17]

Answer:

Trapezius.

Explanation:

Sternocleidomastoid muscles may be defined as one of the largest superficial cervical muscle. The main function of this muscle is the neck flexion and the head rotation.  

Trapezius muscle is the large muscle that extend from the occipital bone. The main function of the trapezius muscle is the scapula movement and support of the arm. Trapezium muscle resist the neck flexion and works as the antagonist to the trapezius muscle.

Thus, the answer is trapezius.

5 0
3 years ago
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