All categories

3 years ago

There are only two genders. True False

Biology

2 answers:

Aleonysh [2.5K]3 years ago

7 0

This is a TRUE statement. There is no evidence that there are more than 2 genders.

Gnom [1K]3 years ago

3 0

True////////////////////

You might be interested in

Living material that makes up organisms is known as __________.

Andreas93 [3]

Answer:

the answer is B. biomass

7 0

2 years ago

Read 2 more answers

2. Which of the genotypes listed above would provide the strongest evidence that the alleles for blood type are co-dominant? Ple

Ket [755]

Answer:

Explanation:

Blood group is discovered by famous scientist Karl Landsteiner in the year 1990. Co-dominance is the expression of the two alleles in the heterozygotes. In AB type, the two different alleles are present and they are expressed.

However in ABO type, it is govern by three allele namely A, B and O type. If only the antigen A is present, it is called A blood type. When only B antigen is present it is called B blood type and when both A and B are present, it is called AB blood type. And if neither of the antigen are present, it is called the O blood type.

The allele O is of recessive to both the blood type A and B. So a person with O blood type have two copies of O allele. But however A and B blood type are dominant of O, a person with A blood type may have one of the two genotypes -- AO or AA. Similarly, with blood type B, the genotypes are BO or BB.

3 0

2 years ago

The highlighted structure separates the oocyte from the externally located ________. zona pellucida primary follicle corona radi

Naya [18.7K]

Answer:

Granulosa cells

Explanation:

Foliculogenesis is a dynamic and complex process through which the follicle goes through many stages of development in a short period (approximately 60 days in humans and some chimpanzees).

The stages classification is based on morphological changes such as follicular size or diameter, the number of follicular cell layers, etcetera. These classifications might vary among authors but could be denominated as:

Primordial follicle

Primary follicle

Secondary follicle and

De Graaf follicles (This is the one shown in the image)

Through each stage, there are certain modifications in the oocyte, follicular cells, and connective tissue. As the oocyte grows, the follicular cells might reach a size twice or three times bigger than the ones of the primordial follicles. Their shape also changes and they adopt an aspect of stratified epithelium. Their cytoplasm gets a granulous aspect, after what these cells receive the name of granulous cells. The De Graaf follicle characterizes for having a space named follicular antro that displaces the oocyte to one of the sides.

The oocyte at this point gets surrounded by zona pellucida and corona radiata .

The follicular antro (The highlighted structure) separates the oocyte from the externally located granulosa cells or follicular cells.

7 0

2 years ago

Why do scientists believe the universe is still expanding? b The further away an object is, the higher the temperature and press

ololo11 [35]

Answer: it’s distant objects shift in frequency toward red on the electromagnetic spectrum, which tells us objects are moving away from us!

Explanation: This is correct because I got this one right on my quiz and I took notes on it!

3 0

2 years ago

What Is a variation?

Mumz [18]

A change or a slight difference

8 0

2 years ago