What is the difference between a chromatid and a chromosome?

1 answer:

3 0

A chromatid is one half of a replicated chromosome, whereas a chromosome consists of DNA wrapped around proteins in a highly organized manner.

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Which two organ systems regulate homeostasis in our bodies?

Mazyrski [523]

Hello there.

Which two organ systems regulate homeostasis in our bodies?

nervous and endocrine

6 0

2 years ago

All life depends on the availability of usable energy. this energy is released when ?

alexgriva [62]

We "release energy" by doing two things. One is through going to the toilet and not peeing :). When our bodies digest the food we eat, we have to release this leftover energy in the form of fecal matter. Another way how we release energy is when our lives end. When our life ends, our bodies start rotting and releasing energy for other beings.

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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.

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3 years ago

In garden peas, one pair of alleles controls the height of the plant, and a second pair of alleles controls flower color. The al

Lerok [7]

Answer:

The parent's genotypes are:

Ddpp - tall, white parent

ddPp - dwarf, purple parent.

Explanation:

This question involves two different genes coding for height and flower color in pea plants. The alleles for tallness (D) and purple color (P) are dominant over the alleles for dwarfness (d) and white color (p) respectively.

According to this question, a tall plant with white flowers is crossed with a dwarf plant with purple flowers to produce the following proportion of offsprings: 1/4 tall purple, 1/4 tall white, 1/4 dwarf purple, and 1/4 dwarf white.

Since some of the offsprings contain recessive alleles for both or either genes, the dominant traits of the parent is controlled by an heterozygous genotype. This means that the tall plant with white flowers has a genotype: Ddpp while the dwarf plant with purple flowers has the genotype: ddPp. In a cross between Ddpp × ddPp, 1/4 of each combination of alleles is produced in the offsprings (see punnet square in the attachment).

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3 years ago

What does bone consist of?

MrRa [10]

mostly collagen and some calcium phosphate

4 0

3 years ago