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3 years ago

How is gametogenesis different in females than in males?

1 answer:

5 0

First thing is Male gametes are called sperm and Female gametes are called eggs. So some physical differences are that the eggs are spherical in shape, much larger then sperm, and are immobile (they stay in the female reproductive organ during fertilization). Sperm are smaller, are in a cone shape, and have tails so the could move to the egg during fertilization.

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DNA gel electrophoresis begins with using enzymes that do what

sveticcg [70]

Answer:

separate DNA fragments according to their size.

Explanation:

Gel Electrophoresis of DNA demonstrates how DNA can be specifically cut into fragments by restriction enzymes and then can be separated by fragment size on an agarose gel.

4 0

3 years ago

You have eaten daal at lunch. Make a list of enzymes it will be acted upon and changes it will undergo before being absorbed in

Vaselesa [24]

Answer:

Amylase and protease enzymes act on daal eaten at lunch.

Explanation:

Daal is the Indian name of pulses. Pulses contains both protein and carbohydrates in large amount and our body cannot absorb these nutrients due to bigger size. For the absorption of these nutrients, they can be broken down into simpler substances with the help of enzymes. Amylase enzyme helps in the break down of carbohydrate while protease enzyme is responsible for the break down of protein.

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3 years ago

The enzyme lactase breaks the sugar lactose into which compound(s)

Sloan [31]

The answer is galactose and glucose.

Lactase is considered as B- galactosidase enzymes that breaks down and form galactosidic bonds on sugars. This is present in the digestive system and hydrolyze the lactose present in the food into glucose and galactose. Lactase is present in wide number of animals and microorganism. Bacillus, Kluyveromyces and Aspergillus are commercially cultivated to produce lactase for industrial purposes.

3 0

3 years ago

22. Organisms that have two identical alleles for a particular trait are said to be

ella [17]

Answer:

a) Homozygous

Explanation:

An organism in which the two copies of the gene are identical is called homozygous in that gene. An organism with two different alleles of the genes is called heterozygous.

7 0

3 years ago

Read 2 more answers

This tutorial will take you step by step through the question. Individuals with the genotypes Aa Bb CC Dd and Aa bb Cc Dd are cr

Mrac [35]

Answer:

The correct answer is -

a) 1/16

b) 1/64

c) 1/32

Explanation:

According to the law of independent assortment, each allele of a particular gene has equal chances of getting inherited into the gametes.

In a Mendelian cross of Aa x Aa would give;

AA = 1/4,

Aa = 2/4 and

aa = 1/4

The result of the cross between AaBb x AaBb would be 1/16 due to the fact that probability is still the same AA = 1/4, BB = 1/4 therefore, AABB = 1/16 = 1/4× 1/4.

Now based on this crossing the following:

AaBbCCDd x AabbCcDd.

Take each allele as individual

Aa x Aa would give; AA = 1/4, Aa = 2/4 and aa = 1/4

Bb x bb would give; BB = 1/2, bb = 1/2

CC x Cc would give; CC = 1/2, Cc = 1/2

Dd x Dd would give; DD = 1/4, Dd = 2/4 and dd = 1/4

Then the probability of progeny of the following would be:

a) the probability of AaBbCcDd = 2/4 x 1/2 x 1/2 x 2/4 = 1/16

b) the probability of aabbCCdd = 1/4 x 1/2 x 1/2 x 1/4 = 1/64

c) the probability of AabbCcDD = 2/4 x 1/2 x 1/2 x 1/4 = 1/32

6 0

3 years ago