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NARA [144]
3 years ago
11

in humans, a combination of XX chromosomes results in a female zygote and that of XY result in a male zygotes. From whom does th

e a male zygotes inherit an X chromosome
Biology
1 answer:
devlian [24]3 years ago
6 0
The answer is: from mother

In a human diploid somatic cell (2n), there are<span> in total 46 chromosomes</span> - 22 autosomal chromosomes present in two copies and 1 pair of sex chromosomes. This means there are 23 pairs of chromosomes. In males, there is one X and one Y chromosome (XY) while in females, there are two XX chromosomes (XY).
During the formation of gametes, a female could give only X chromosomes, so gametes from the mother contain one X chromosome. But, a male could give X or Y chromosome, so gametes from the father contain either X or Y chromosome.
Female gamete and male gamete fuse to form a zygote. Male zygote must contain both X and Y chromosome. It inherits Y chromosome only from the father, so X chromosome must be inherited from the mother.
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What factor determines how much linoleic acid can twist and bend its shape?
Aliun [14]

Answers;

-The number of carbon-carbon double bonds

Explanation;

-Linoleic acid is considered a type of nonpolar compound. It contains a hydrocarbon due to being a fatty acid making it nonpolar.

-The body can synthesize most of the fats it needs from the diet. However, two essential fatty acids, linoleic and alpha-linolenic, cannot be synthesized in the body and must be obtained from food. These basic fats, found in plant foods, are used to build specialized fats called omega-3 and omega-6 fatty acids.

6 0
3 years ago
A variety of opium poppy (Papaver somniferum L.) having lacerated leaves was crossed with a variety that has normal leaves. All
Ainat [17]

Answer:

The correct answer is-

F1 -  AaBb (lacerate)

F2 - A_B_; A_bb; and aaB_ (lacerate)

     - aabb (normal)

2. Two genes, with a dominant allele at either or both loci.

Explanation:

The given information gives THE following data:

Dominant: Lancerate leaves - AABB

Recessive: normal leaves - aabb

F1 has - all Lacerated leaves - AaBb

F2 by selfing F1:

         AB               Ab         aB         ab

AB    AABB        AABb      AaBB    AaBb

Ab     AABb       AAbb      AaBb     Aabb

aB     AaBB       AaBb       aaBB     aaBb

ab     AaBb       Aabb       aaBb      aabb

Here, 15/16 = lacerate which is 0.94 which is equal to the value of lacerate given in the question - 249/265 = 0.94

And normal 1/16 = 0.062 is almost same as 16/265 = 0.060

Thus, the genotypes of -

F1 -  AaBb (lacerate)

F2 - A_B_; A_bb; and aaB_ (lacerate)

     - aabb (normal)

5 0
3 years ago
A client presents to the ed reporting anxiety and chest pain after shoveling heavy snow that morning. the client says that nitro
Aneli [31]
There are choices for this question namely:

Ativan 1 mg orally 
<span>Nitroglycerin SL </span>
<span>Serum electrolytes </span>
<span>Chest x-ray
</span>
The correct answer is "Nitroglycerin SL". The SL means sublingually. The physician will still order Nitroglycerin to be taken sublingually whenever there is chest pain. The patient's medication may have been expired being stored for 12 months now. Ativan or Lorazepam will not be given as this is a sedative and there is no indication for sedatives.

Serum electrolytes and chest xray will not be requested as these diagnostic examinations are not usually done in patients with stable angina.
7 0
3 years ago
PLSSS HELP IF YOU TURLY KNOW THISS
Reil [10]

Answer:

A. automatic functions

Explanation:

Midbrain functions are functions we can not control such as, eye movements and motor functions.

Hope this helps!

8 0
2 years ago
Read 2 more answers
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Lilit [14]
My best answer would be C I hoped I helped sry if you get it wrong
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3 years ago
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