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photoshop1234 [79]
3 years ago
15

Which way do the nitrogenous bases in DNA pair up

Biology
1 answer:
slamgirl [31]3 years ago
6 0

Answer: Base pairs occur when nitrogenous bases make hydrogen bonds with each other.

Explanation: Each base has a specific partner: guanine with cytosine, adenine with thymine (in DNA), The hydrogen bonds are weak allowing it to "unzip"

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The process of ____________ increases genetic variability as it produces gametes for sexual reproduction. A) conjugation B) meio
LekaFEV [45]
B) Meiosis-"a type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell, as in the production of gametes and plant spores." taken from google
7 0
3 years ago
Read 2 more answers
The immune response is a dynamic process that initiates with an antigen-independent response, which becomes more focused and pow
prisoha [69]
<h2>False </h2>

Explanation:

The immune system develops integrated innate and adaptive modules that are pathogen type-specific and no single response can effectively control all types of pathogens

Both innate and adaptive immune system operate in cooperative and interdependent ways

Innate immune system is present since birth in an organism and is non specific in nature which means acts against all foreign antigens and molecules and provides first line of defense against pathogens

Adaptive immunity system is the acquired one which is capable of recognizing and selectively eliminating specific foreign antigens and is antigen specific which means can discriminate among different antigens; also has the ability to respond to various kinds of epitopes of pathogens

6 0
3 years ago
Cambor proteins
kondaur [170]
Charged amino acid is the correct answer to this
4 0
3 years ago
Sickle cell anaemia is an inherited autosomal recessive
alekssr [168]

Answer:

1/8 (12.5%)

Explanation:

An autosomal recessive disease is an inherited disease in which an individual need to receive both defective alleles at the same gene <em>locus</em> to be expressed in the phenotype. In this case, both parents are carriers of the recessive mutant allele associated with the sickle cell anaemia trait, thereby both parents are heterozygous, ie., each parent has one copy of the normal allele 'H' and one copy of the defective mutant allele 'h' associated with this condition. In consequence, their first child has a 1/4 (25%) chance of having sickle-cell anaemia. Moreover, the chance of having a girl is 1/2 and the chance of having a boy is 1/2, thereby the final chance of having a girl sickle cell anaemia individual is 1/4 x 1/2 = 1/8 (12.5%).

- Parental cross for sickle cell anaemia trait = Hh x Hh >>

- F1 = 1/4 HH (normal); 1/2 Hh (normal); 1/4 hh (sickle cell anaemia) >>  

- Sex proportion of sickle cell anaemia individuals =  1/8 female sickle cell anaemia individuals + 1/8 male sickle cell anaemia individuals (1/8 + 1/8 = 1/4)

3 0
2 years ago
Many foods, for example, bacon and salt cod, are preserved with high concentrations of salt applied to the outside of the meat.
Rama09 [41]

High concentrations of salt can inhibit the growth of bacteria by causing the bacteria to shrink because water leaves the bacterial cell.

<h3>What is a Hypertonic solution?</h3>

This is defined as a type of solution which has a large amount of particles which are dissolved thereby making it have a high concentration.

High concentrations of salt applied to the outside of the meat means it is hypertonic and therefore causes the bacteria to shrink because water molecule leaves the cells thereby destroying their structure preventing metabolic reactions from occurring which leads to their death.

Read more about Hypertonic solution here brainly.com/question/24566077

#SPJ1

8 0
1 year ago
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